Page 1
NTSE STAGE – I
02 – A/2017 – 18 (For Class – X)
MENTAL ABILITY TEST (MAT)
1. The value of
1 1 1 1 1 1 1 1
1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 9
? ? ? ? ? ? ?
? ? ? ? ? ? ? ?
is
1. 4 2. 2
3. 0 4. 1
2. If 5tan 3 ?? then
5tan 3cos
5sin 3cos
? ? ?
?
? ? ?
___
1. 0 2.
5
3
3.
3
5
4.
4
5
3. A regular polygon is drawn with 35 diagonals. Its interior angle will be
1. 154
o
2. 164
o
3. 144
o
4. None of these
4. If x means –, + means ?, – means x and ? means + then 15 2 900 90 100 ? ? ? ? ? ?
1. 190 2. 180
3. 90 4. – 60
5. If one root of quadratic equation ? ?
2
K 1 x 5x 2k 0 ? ? ? ? is reciprocal of other then value of
K is
1.2 2. 0
3. –1 4. 1
6. What will be the ratio of volume of cube is to volume of sphere inscribed in the cube
1. 3 : ? 2. 6 : ?
3. 6 : 5 4. 2 : ?
7. If ?, ? are the roots of the equation
2
2x 5x 16 0 ? ? ? , then value of
11
22
33
? ? ? ? ??
?
? ? ? ?
??
? ? ? ?
is
1.
1
4
2.
5
4
3.
1
3
4.
5
12
8. Divisor is 10 times of quotient and 10 times of reminder. If quotent is 10 then what is divided
1. 1010 2. 1100
3. 1001 4. 101
9. Value of ? ? ? ? ? ? ? ? ? ?
2
3 3 3 2
0.111 0.222 0.333 0.333 0.222
??
???
??
will be
1. 222 2. 0
3. 333 4. 2
Page 2
NTSE STAGE – I
02 – A/2017 – 18 (For Class – X)
MENTAL ABILITY TEST (MAT)
1. The value of
1 1 1 1 1 1 1 1
1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 9
? ? ? ? ? ? ?
? ? ? ? ? ? ? ?
is
1. 4 2. 2
3. 0 4. 1
2. If 5tan 3 ?? then
5tan 3cos
5sin 3cos
? ? ?
?
? ? ?
___
1. 0 2.
5
3
3.
3
5
4.
4
5
3. A regular polygon is drawn with 35 diagonals. Its interior angle will be
1. 154
o
2. 164
o
3. 144
o
4. None of these
4. If x means –, + means ?, – means x and ? means + then 15 2 900 90 100 ? ? ? ? ? ?
1. 190 2. 180
3. 90 4. – 60
5. If one root of quadratic equation ? ?
2
K 1 x 5x 2k 0 ? ? ? ? is reciprocal of other then value of
K is
1.2 2. 0
3. –1 4. 1
6. What will be the ratio of volume of cube is to volume of sphere inscribed in the cube
1. 3 : ? 2. 6 : ?
3. 6 : 5 4. 2 : ?
7. If ?, ? are the roots of the equation
2
2x 5x 16 0 ? ? ? , then value of
11
22
33
? ? ? ? ??
?
? ? ? ?
??
? ? ? ?
is
1.
1
4
2.
5
4
3.
1
3
4.
5
12
8. Divisor is 10 times of quotient and 10 times of reminder. If quotent is 10 then what is divided
1. 1010 2. 1100
3. 1001 4. 101
9. Value of ? ? ? ? ? ? ? ? ? ?
2
3 3 3 2
0.111 0.222 0.333 0.333 0.222
??
???
??
will be
1. 222 2. 0
3. 333 4. 2
10. If n is a natural number the
2n 2n
94 ? is always divisible by
1. 13 2. both 5 and 13
3. 5 4. none of the above
11. If sum of LCM and HCF of two number is 50 and their LCM is 20 more than their HCF, then
the product of two numbers will be
1. 525 2. 425
3. 625 4. 325
12. A 320 m long train moving at an average speed of 120 km/h crosses a platform in 24
seconds. A man crossed the same platform in 4 minutes. The speed of the man in m/sec is
1. 2.0 2. 2.4
3. 1.6 4. 1.5
13. If
n 1 n 1
nn
ab
ab
??
?
?
is the AM (arithmetic mean) between a and b, then find the value of n
1. 1 2. 3
3. 2 4. 0
14. In a certain office,
1
3
of the workers are women,
1
2
of the same are married and
1
3
of the
married women have children. If
3
4
of the men married and
2
3
of the married men have
children, then what part of worker are without children?
1. 5/18 2. 4/9
3. 11/18 4. 17/36
15. If in a business, Alok gain 75% more profit than Akash, then by what percentage profit of
Akash is less than the profit of Alok
1. 25% 2. 12.63%
3. 30.8% 4. 42.85%
16. The height of three towers are in the ratio of 5:6:7. If a spider takes 15 minutes to climb the
smallest tower, how much time it will take to climb the highest one
1. 15 minutes 2. 18 minutes
3. 21 minutes 4. 54 minutes
17. The two vertices of a Triangle are (4, –2) and (2, –6). If centerod of a triangle is (0, 1) then
third vertex of triangle will be
1. (–6, 11) 2. (11, –6)
3. (6, –11) 4. (6, 11)
18. If sin ,cos ,tan ? ? ? are in GP, GP means
2
cos sin .tan ? ? ? ?
62
cot cot ? ? ? ?
1.1 2. 0
3. 4 4. 2
19. Eight members of a group shake hand with one another once. How many hand shakes were
done altogether
1. 64 2. 16
3. 28 4. 18
20. Three of the six vertices of a regular hexagon are chosen at random. The probability that
triangle formed by these vertices is equilateral is
1 1/20. 2. 1/10
3. 1/5 4. ½
Page 3
NTSE STAGE – I
02 – A/2017 – 18 (For Class – X)
MENTAL ABILITY TEST (MAT)
1. The value of
1 1 1 1 1 1 1 1
1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 9
? ? ? ? ? ? ?
? ? ? ? ? ? ? ?
is
1. 4 2. 2
3. 0 4. 1
2. If 5tan 3 ?? then
5tan 3cos
5sin 3cos
? ? ?
?
? ? ?
___
1. 0 2.
5
3
3.
3
5
4.
4
5
3. A regular polygon is drawn with 35 diagonals. Its interior angle will be
1. 154
o
2. 164
o
3. 144
o
4. None of these
4. If x means –, + means ?, – means x and ? means + then 15 2 900 90 100 ? ? ? ? ? ?
1. 190 2. 180
3. 90 4. – 60
5. If one root of quadratic equation ? ?
2
K 1 x 5x 2k 0 ? ? ? ? is reciprocal of other then value of
K is
1.2 2. 0
3. –1 4. 1
6. What will be the ratio of volume of cube is to volume of sphere inscribed in the cube
1. 3 : ? 2. 6 : ?
3. 6 : 5 4. 2 : ?
7. If ?, ? are the roots of the equation
2
2x 5x 16 0 ? ? ? , then value of
11
22
33
? ? ? ? ??
?
? ? ? ?
??
? ? ? ?
is
1.
1
4
2.
5
4
3.
1
3
4.
5
12
8. Divisor is 10 times of quotient and 10 times of reminder. If quotent is 10 then what is divided
1. 1010 2. 1100
3. 1001 4. 101
9. Value of ? ? ? ? ? ? ? ? ? ?
2
3 3 3 2
0.111 0.222 0.333 0.333 0.222
??
???
??
will be
1. 222 2. 0
3. 333 4. 2
10. If n is a natural number the
2n 2n
94 ? is always divisible by
1. 13 2. both 5 and 13
3. 5 4. none of the above
11. If sum of LCM and HCF of two number is 50 and their LCM is 20 more than their HCF, then
the product of two numbers will be
1. 525 2. 425
3. 625 4. 325
12. A 320 m long train moving at an average speed of 120 km/h crosses a platform in 24
seconds. A man crossed the same platform in 4 minutes. The speed of the man in m/sec is
1. 2.0 2. 2.4
3. 1.6 4. 1.5
13. If
n 1 n 1
nn
ab
ab
??
?
?
is the AM (arithmetic mean) between a and b, then find the value of n
1. 1 2. 3
3. 2 4. 0
14. In a certain office,
1
3
of the workers are women,
1
2
of the same are married and
1
3
of the
married women have children. If
3
4
of the men married and
2
3
of the married men have
children, then what part of worker are without children?
1. 5/18 2. 4/9
3. 11/18 4. 17/36
15. If in a business, Alok gain 75% more profit than Akash, then by what percentage profit of
Akash is less than the profit of Alok
1. 25% 2. 12.63%
3. 30.8% 4. 42.85%
16. The height of three towers are in the ratio of 5:6:7. If a spider takes 15 minutes to climb the
smallest tower, how much time it will take to climb the highest one
1. 15 minutes 2. 18 minutes
3. 21 minutes 4. 54 minutes
17. The two vertices of a Triangle are (4, –2) and (2, –6). If centerod of a triangle is (0, 1) then
third vertex of triangle will be
1. (–6, 11) 2. (11, –6)
3. (6, –11) 4. (6, 11)
18. If sin ,cos ,tan ? ? ? are in GP, GP means
2
cos sin .tan ? ? ? ?
62
cot cot ? ? ? ?
1.1 2. 0
3. 4 4. 2
19. Eight members of a group shake hand with one another once. How many hand shakes were
done altogether
1. 64 2. 16
3. 28 4. 18
20. Three of the six vertices of a regular hexagon are chosen at random. The probability that
triangle formed by these vertices is equilateral is
1 1/20. 2. 1/10
3. 1/5 4. ½
Directions: Question 21 – 25
Study the following pie- chart and bar graph and answer the following questions percentage
distribution of teachers in six different districts. Total numbers of teacher = 4500.
Number of male out of 4500
21. What is the total number of male teachers in District F, Female teachers in District C and
Female teachers in District B together?
1. 1180 2. 1080
3. 1020 4. 1120
22. The numbers of female teachers in District D is approximately what percent of the total
number of teachers (both male and female) in District A
1. 70 2. 80
3. 75 4. 90
23. In which district is the number of male teachers more than the number of female teachers?
1. B only 2. D only
3. Both B and E 4. Both E and F
24. What is the difference between the number of female teachers in district F and total number
of teachers (both male and female) in district E?
1. 625 2. 775
3. 675 4. 725
25. What is the ratio of the number of male teachers in district C to number of female teachers in
district B?
1. 11:15 2. 15:11
3. 15:8 4. 8:15
26. Complete the given series:
25, 255, 2545, 25455, …
1. 254545 2. 25555
3. 254555 4. 255454
Page 4
NTSE STAGE – I
02 – A/2017 – 18 (For Class – X)
MENTAL ABILITY TEST (MAT)
1. The value of
1 1 1 1 1 1 1 1
1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 9
? ? ? ? ? ? ?
? ? ? ? ? ? ? ?
is
1. 4 2. 2
3. 0 4. 1
2. If 5tan 3 ?? then
5tan 3cos
5sin 3cos
? ? ?
?
? ? ?
___
1. 0 2.
5
3
3.
3
5
4.
4
5
3. A regular polygon is drawn with 35 diagonals. Its interior angle will be
1. 154
o
2. 164
o
3. 144
o
4. None of these
4. If x means –, + means ?, – means x and ? means + then 15 2 900 90 100 ? ? ? ? ? ?
1. 190 2. 180
3. 90 4. – 60
5. If one root of quadratic equation ? ?
2
K 1 x 5x 2k 0 ? ? ? ? is reciprocal of other then value of
K is
1.2 2. 0
3. –1 4. 1
6. What will be the ratio of volume of cube is to volume of sphere inscribed in the cube
1. 3 : ? 2. 6 : ?
3. 6 : 5 4. 2 : ?
7. If ?, ? are the roots of the equation
2
2x 5x 16 0 ? ? ? , then value of
11
22
33
? ? ? ? ??
?
? ? ? ?
??
? ? ? ?
is
1.
1
4
2.
5
4
3.
1
3
4.
5
12
8. Divisor is 10 times of quotient and 10 times of reminder. If quotent is 10 then what is divided
1. 1010 2. 1100
3. 1001 4. 101
9. Value of ? ? ? ? ? ? ? ? ? ?
2
3 3 3 2
0.111 0.222 0.333 0.333 0.222
??
???
??
will be
1. 222 2. 0
3. 333 4. 2
10. If n is a natural number the
2n 2n
94 ? is always divisible by
1. 13 2. both 5 and 13
3. 5 4. none of the above
11. If sum of LCM and HCF of two number is 50 and their LCM is 20 more than their HCF, then
the product of two numbers will be
1. 525 2. 425
3. 625 4. 325
12. A 320 m long train moving at an average speed of 120 km/h crosses a platform in 24
seconds. A man crossed the same platform in 4 minutes. The speed of the man in m/sec is
1. 2.0 2. 2.4
3. 1.6 4. 1.5
13. If
n 1 n 1
nn
ab
ab
??
?
?
is the AM (arithmetic mean) between a and b, then find the value of n
1. 1 2. 3
3. 2 4. 0
14. In a certain office,
1
3
of the workers are women,
1
2
of the same are married and
1
3
of the
married women have children. If
3
4
of the men married and
2
3
of the married men have
children, then what part of worker are without children?
1. 5/18 2. 4/9
3. 11/18 4. 17/36
15. If in a business, Alok gain 75% more profit than Akash, then by what percentage profit of
Akash is less than the profit of Alok
1. 25% 2. 12.63%
3. 30.8% 4. 42.85%
16. The height of three towers are in the ratio of 5:6:7. If a spider takes 15 minutes to climb the
smallest tower, how much time it will take to climb the highest one
1. 15 minutes 2. 18 minutes
3. 21 minutes 4. 54 minutes
17. The two vertices of a Triangle are (4, –2) and (2, –6). If centerod of a triangle is (0, 1) then
third vertex of triangle will be
1. (–6, 11) 2. (11, –6)
3. (6, –11) 4. (6, 11)
18. If sin ,cos ,tan ? ? ? are in GP, GP means
2
cos sin .tan ? ? ? ?
62
cot cot ? ? ? ?
1.1 2. 0
3. 4 4. 2
19. Eight members of a group shake hand with one another once. How many hand shakes were
done altogether
1. 64 2. 16
3. 28 4. 18
20. Three of the six vertices of a regular hexagon are chosen at random. The probability that
triangle formed by these vertices is equilateral is
1 1/20. 2. 1/10
3. 1/5 4. ½
Directions: Question 21 – 25
Study the following pie- chart and bar graph and answer the following questions percentage
distribution of teachers in six different districts. Total numbers of teacher = 4500.
Number of male out of 4500
21. What is the total number of male teachers in District F, Female teachers in District C and
Female teachers in District B together?
1. 1180 2. 1080
3. 1020 4. 1120
22. The numbers of female teachers in District D is approximately what percent of the total
number of teachers (both male and female) in District A
1. 70 2. 80
3. 75 4. 90
23. In which district is the number of male teachers more than the number of female teachers?
1. B only 2. D only
3. Both B and E 4. Both E and F
24. What is the difference between the number of female teachers in district F and total number
of teachers (both male and female) in district E?
1. 625 2. 775
3. 675 4. 725
25. What is the ratio of the number of male teachers in district C to number of female teachers in
district B?
1. 11:15 2. 15:11
3. 15:8 4. 8:15
26. Complete the given series:
25, 255, 2545, 25455, …
1. 254545 2. 25555
3. 254555 4. 255454
27. Find the missing letter:
3 L 4
1 Q 17
5 ? 4
1. V 2. P
3. Q 4. T
28. In the given arrangement of numbers after removing all even numbers which is the middle
most number?
1 8 5 9 4 7 1 2 5 8 3 6 5 9 2 7 6 4 5 2 9 2 6 4 1 2 3 5 1 4 2 8 3
1. 5 2. 7
3. 6 4. 9
29. A clock is set right at 5 am. The clock loses 16 minutes in 24 hours. What will be the right
time when the clock indicates 10 pm on the 4
th
day?
1. 8 pm 2. 9 pm
3. 10 pm 4. 11 pm
Directions (Q. No 30 – 31):
Answer the questions based on the following information. Numbers are written on the Chess Board
as given below.
30. If
8 1 2 3 7
a a a a ...a ? ? ? ?
8 1 2 3 7
b b b b ... b ? ? ? ? ?
. .
. .
. .
8 1 2 3 7
h h h h ...h ? ? ? ?
What is
8 8 8
a b ...h ___ ? ? ?
1. 2080 2. 1596
3. 399 4. 741
31. The total number of odd numbers on the white box are
1. 8 2. 16
3. 24 4. 32
Page 5
NTSE STAGE – I
02 – A/2017 – 18 (For Class – X)
MENTAL ABILITY TEST (MAT)
1. The value of
1 1 1 1 1 1 1 1
1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 9
? ? ? ? ? ? ?
? ? ? ? ? ? ? ?
is
1. 4 2. 2
3. 0 4. 1
2. If 5tan 3 ?? then
5tan 3cos
5sin 3cos
? ? ?
?
? ? ?
___
1. 0 2.
5
3
3.
3
5
4.
4
5
3. A regular polygon is drawn with 35 diagonals. Its interior angle will be
1. 154
o
2. 164
o
3. 144
o
4. None of these
4. If x means –, + means ?, – means x and ? means + then 15 2 900 90 100 ? ? ? ? ? ?
1. 190 2. 180
3. 90 4. – 60
5. If one root of quadratic equation ? ?
2
K 1 x 5x 2k 0 ? ? ? ? is reciprocal of other then value of
K is
1.2 2. 0
3. –1 4. 1
6. What will be the ratio of volume of cube is to volume of sphere inscribed in the cube
1. 3 : ? 2. 6 : ?
3. 6 : 5 4. 2 : ?
7. If ?, ? are the roots of the equation
2
2x 5x 16 0 ? ? ? , then value of
11
22
33
? ? ? ? ??
?
? ? ? ?
??
? ? ? ?
is
1.
1
4
2.
5
4
3.
1
3
4.
5
12
8. Divisor is 10 times of quotient and 10 times of reminder. If quotent is 10 then what is divided
1. 1010 2. 1100
3. 1001 4. 101
9. Value of ? ? ? ? ? ? ? ? ? ?
2
3 3 3 2
0.111 0.222 0.333 0.333 0.222
??
???
??
will be
1. 222 2. 0
3. 333 4. 2
10. If n is a natural number the
2n 2n
94 ? is always divisible by
1. 13 2. both 5 and 13
3. 5 4. none of the above
11. If sum of LCM and HCF of two number is 50 and their LCM is 20 more than their HCF, then
the product of two numbers will be
1. 525 2. 425
3. 625 4. 325
12. A 320 m long train moving at an average speed of 120 km/h crosses a platform in 24
seconds. A man crossed the same platform in 4 minutes. The speed of the man in m/sec is
1. 2.0 2. 2.4
3. 1.6 4. 1.5
13. If
n 1 n 1
nn
ab
ab
??
?
?
is the AM (arithmetic mean) between a and b, then find the value of n
1. 1 2. 3
3. 2 4. 0
14. In a certain office,
1
3
of the workers are women,
1
2
of the same are married and
1
3
of the
married women have children. If
3
4
of the men married and
2
3
of the married men have
children, then what part of worker are without children?
1. 5/18 2. 4/9
3. 11/18 4. 17/36
15. If in a business, Alok gain 75% more profit than Akash, then by what percentage profit of
Akash is less than the profit of Alok
1. 25% 2. 12.63%
3. 30.8% 4. 42.85%
16. The height of three towers are in the ratio of 5:6:7. If a spider takes 15 minutes to climb the
smallest tower, how much time it will take to climb the highest one
1. 15 minutes 2. 18 minutes
3. 21 minutes 4. 54 minutes
17. The two vertices of a Triangle are (4, –2) and (2, –6). If centerod of a triangle is (0, 1) then
third vertex of triangle will be
1. (–6, 11) 2. (11, –6)
3. (6, –11) 4. (6, 11)
18. If sin ,cos ,tan ? ? ? are in GP, GP means
2
cos sin .tan ? ? ? ?
62
cot cot ? ? ? ?
1.1 2. 0
3. 4 4. 2
19. Eight members of a group shake hand with one another once. How many hand shakes were
done altogether
1. 64 2. 16
3. 28 4. 18
20. Three of the six vertices of a regular hexagon are chosen at random. The probability that
triangle formed by these vertices is equilateral is
1 1/20. 2. 1/10
3. 1/5 4. ½
Directions: Question 21 – 25
Study the following pie- chart and bar graph and answer the following questions percentage
distribution of teachers in six different districts. Total numbers of teacher = 4500.
Number of male out of 4500
21. What is the total number of male teachers in District F, Female teachers in District C and
Female teachers in District B together?
1. 1180 2. 1080
3. 1020 4. 1120
22. The numbers of female teachers in District D is approximately what percent of the total
number of teachers (both male and female) in District A
1. 70 2. 80
3. 75 4. 90
23. In which district is the number of male teachers more than the number of female teachers?
1. B only 2. D only
3. Both B and E 4. Both E and F
24. What is the difference between the number of female teachers in district F and total number
of teachers (both male and female) in district E?
1. 625 2. 775
3. 675 4. 725
25. What is the ratio of the number of male teachers in district C to number of female teachers in
district B?
1. 11:15 2. 15:11
3. 15:8 4. 8:15
26. Complete the given series:
25, 255, 2545, 25455, …
1. 254545 2. 25555
3. 254555 4. 255454
27. Find the missing letter:
3 L 4
1 Q 17
5 ? 4
1. V 2. P
3. Q 4. T
28. In the given arrangement of numbers after removing all even numbers which is the middle
most number?
1 8 5 9 4 7 1 2 5 8 3 6 5 9 2 7 6 4 5 2 9 2 6 4 1 2 3 5 1 4 2 8 3
1. 5 2. 7
3. 6 4. 9
29. A clock is set right at 5 am. The clock loses 16 minutes in 24 hours. What will be the right
time when the clock indicates 10 pm on the 4
th
day?
1. 8 pm 2. 9 pm
3. 10 pm 4. 11 pm
Directions (Q. No 30 – 31):
Answer the questions based on the following information. Numbers are written on the Chess Board
as given below.
30. If
8 1 2 3 7
a a a a ...a ? ? ? ?
8 1 2 3 7
b b b b ... b ? ? ? ? ?
. .
. .
. .
8 1 2 3 7
h h h h ...h ? ? ? ?
What is
8 8 8
a b ...h ___ ? ? ?
1. 2080 2. 1596
3. 399 4. 741
31. The total number of odd numbers on the white box are
1. 8 2. 16
3. 24 4. 32
Directions: Read the information given below carefully and answer the question.
x + y means x is the sister of y.
x – y means x is the son of y.
x ? y means x is the mother of y
x ? y means x is the father of y
x ? y means x is brother of y
x = y means x is daughter of y
32. Which of the following alternative means ‘F is father of J’?
1. F ? G ? H x I – J 2. J = I + H ? G ? F
3. F + G – H x I – J 4. J + I – H x G – F
33. Five persons are standing in a line facing North. One of the two persons standing at the
extreme ends is a teacher and the other is a businessman. A doctor is standing to the right
of a student. A clerk is to left of the businessman. The student is standing between the
teacher and the doctor. Counting from the left the doctor is at which place?
1. I 2. III
3. II 4. IV
Directions (Q. 34 – 36):
Read the information given below.
Ten friends A, B, C, D, E, F, G, H, I, J are sitting on the opposite sides of a rectangular table, five on
each side of a pair of opposite sides of the table. J and F are sitting next to each other. B is sitting at
middle position on one of the sides and C is sitting as far from B as B is sitting from A. A , B and C
are sitting on the same side of the table. G and I are sitting opposite to each other, D is on one of
the ends. E has an equal number of persons sitting on his either side. I is sitting to the immediate
right of D.
34. Who is sitting opposite to G?
1. H 2. I
3. J 4. A
35. In between in which two persons I is sitting?
1. D – E 2. J – E
3. B – C 4. D – B
36. In which of the following pairs, given persons cannot be sitting opposite to each other?
1. D – C 2. F – C
3. E – B 4. G – H
37. A fruit seller does not use currency. Instead of he uses the following exchange rates
10 strawberries = 2 Apples
1 Apple = 2 Bananas
4 Bananas = 1 Mango
On the basis of the above exchange rates, how many strawberries are equal to one mango?
1. 4 2. 8
3. 10 4. 12
38. If > stands for +
< stands for –
? stands for x
? stands for ?
Then what is the value of 52 < 4 ? 5 ? 8 ? 2
1. 38 2. 36
3. 124 4. 312
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