Page 1
- 1 -
MATHEMATICS
ICSE Board Class X Exam (2024)
Answers & Solutions
GENERAL INSTRUCTIONS
Read the following instructions very carefully and follow them:
(i) You will not be allowed to write during first 15 minutes.
(ii) Attempt all questions from Section A and any four questions from Section B.
(iii) Omission of essential working will result in loss of marks.
(iv) The intended marks for questions or parts of questions are given in brackets [ ].
(v) Mathematical tables and graph papers are provided.
Time: 2½ Hrs. Max. Marks: 80
Page 2
- 1 -
MATHEMATICS
ICSE Board Class X Exam (2024)
Answers & Solutions
GENERAL INSTRUCTIONS
Read the following instructions very carefully and follow them:
(i) You will not be allowed to write during first 15 minutes.
(ii) Attempt all questions from Section A and any four questions from Section B.
(iii) Omission of essential working will result in loss of marks.
(iv) The intended marks for questions or parts of questions are given in brackets [ ].
(v) Mathematical tables and graph papers are provided.
Time: 2½ Hrs. Max. Marks: 80
Mathematics (ICSE)_Class X
- 2 -
SECTION-A (40 Marks)
(Attempt all questions from this Section.)
1. Choose the correct answers to the questions from the given options. [15]
(i) For an Intra-state sale, the CGST paid by a dealer to the Central government is `120. If the marked price
of the article is `2000, the rate of GST is
(a) 6% (b) 10%
(c) 12% (d) 16.67%
Answer (c) [1]
Sol. Rate of G.S.T. =
2 120
100
2000
?
?
= 12%
(ii) What must be subtracted from the polynomial x
3
+ x
2
– 2x + 1, so that the result is exactly divisible by
(x –3)?
(a) –31 (b) –30
(c) 30 (d) 31
Answer (d) [1]
Sol. 3
3
+ 3
2
– 2(3) + 1 = 31
(iii) The roots of the quadratic equation px
2
– qx + r = 0 are real and equal if:
(a) p
2
= 4qr (b) q
2
= 4pr
(c) –q
2
= 4pr (d) p
2
> 4qr
Answer (b) [1]
Sol. (–q)
2
– 4pr = 0
? q
2
= 4pr
(iv) If matrix
22
02
A
??
=
??
??
and
2
4
,
04
x
A
??
=
??
??
then the value of x is
(a) 2 (b) 4
(c) 8 (d) 10
Answer (c) [1]
Sol.
2
4 8 4
0 4 0 4
x
A
? ? ? ?
==
? ? ? ?
? ? ? ?
x = 8
(v) The median of the following observations arranged in ascending order is 64.
Find the value of x:
27, 31, 46, 52, x, x + 4, 71, 79, 85, 90
(a) 60 (b) 61
(c) 62 (d) 66
Answer (c) [1]
Sol.
( ) 4
64 62
2
xx
x
++
= ? =
Page 3
- 1 -
MATHEMATICS
ICSE Board Class X Exam (2024)
Answers & Solutions
GENERAL INSTRUCTIONS
Read the following instructions very carefully and follow them:
(i) You will not be allowed to write during first 15 minutes.
(ii) Attempt all questions from Section A and any four questions from Section B.
(iii) Omission of essential working will result in loss of marks.
(iv) The intended marks for questions or parts of questions are given in brackets [ ].
(v) Mathematical tables and graph papers are provided.
Time: 2½ Hrs. Max. Marks: 80
Mathematics (ICSE)_Class X
- 2 -
SECTION-A (40 Marks)
(Attempt all questions from this Section.)
1. Choose the correct answers to the questions from the given options. [15]
(i) For an Intra-state sale, the CGST paid by a dealer to the Central government is `120. If the marked price
of the article is `2000, the rate of GST is
(a) 6% (b) 10%
(c) 12% (d) 16.67%
Answer (c) [1]
Sol. Rate of G.S.T. =
2 120
100
2000
?
?
= 12%
(ii) What must be subtracted from the polynomial x
3
+ x
2
– 2x + 1, so that the result is exactly divisible by
(x –3)?
(a) –31 (b) –30
(c) 30 (d) 31
Answer (d) [1]
Sol. 3
3
+ 3
2
– 2(3) + 1 = 31
(iii) The roots of the quadratic equation px
2
– qx + r = 0 are real and equal if:
(a) p
2
= 4qr (b) q
2
= 4pr
(c) –q
2
= 4pr (d) p
2
> 4qr
Answer (b) [1]
Sol. (–q)
2
– 4pr = 0
? q
2
= 4pr
(iv) If matrix
22
02
A
??
=
??
??
and
2
4
,
04
x
A
??
=
??
??
then the value of x is
(a) 2 (b) 4
(c) 8 (d) 10
Answer (c) [1]
Sol.
2
4 8 4
0 4 0 4
x
A
? ? ? ?
==
? ? ? ?
? ? ? ?
x = 8
(v) The median of the following observations arranged in ascending order is 64.
Find the value of x:
27, 31, 46, 52, x, x + 4, 71, 79, 85, 90
(a) 60 (b) 61
(c) 62 (d) 66
Answer (c) [1]
Sol.
( ) 4
64 62
2
xx
x
++
= ? =
Mathematics (ICSE)_Class X
- 3 -
(vi) Points A(x, y), B(3, –2) and C(4, –5) are collinear. The value of y in terms of x is
(a) 3x – 11 (b) 11 – 3x
(c) 3x – 7 (d) 7 – 3x
Answer (d) [1]
Sol.
3 4 3
73
2 5 2
x
yx
y
--
= ? = -
- - - +
(vii) The given table shows the distance covered and the time taken by a train moving at a uniform speed along
a straight track.
Distance (in m) 60 90 y
Time (in sec) 2 x 5
The values of x and y are:
(a) x = 4, y = 150 (b) x = 3, y = 100
(c) x = 4, y = 100 (d) x = 3, y = 150
Answer (d) [1]
Sol. Distance and time are directly proportional
x = 3 seconds
y = 150 meters
(viii) The 7
th
term of the given Arithmetic Progression (A.P.)
1 1 1
, 1 , 2 ...
a a a
? ? ? ?
++
? ? ? ?
? ? ? ?
is
(a)
1
6
a
??
+
??
??
(b)
1
7
a
??
+
??
??
(c)
1
8
a
??
+
??
??
(d)
7
1
7
a
??
+
??
??
Answer (a) [1]
Sol. a
7
= a + (7 – 1)d
=
1
a
+ 6(1)
=
1
a
+ 6
(ix) The sum invested to purchase 15 shares of a company of nominal value ?75 available at a discount of
20% is
(a) ?60 (b) ?90
(c) ?1350 (d) ?900
Answer (d) [1]
Sol. Money invested = Number of shares × Market value of 1 share
= 15 × (75 – 20% of 75)
= 15 × 60
= ?900
Page 4
- 1 -
MATHEMATICS
ICSE Board Class X Exam (2024)
Answers & Solutions
GENERAL INSTRUCTIONS
Read the following instructions very carefully and follow them:
(i) You will not be allowed to write during first 15 minutes.
(ii) Attempt all questions from Section A and any four questions from Section B.
(iii) Omission of essential working will result in loss of marks.
(iv) The intended marks for questions or parts of questions are given in brackets [ ].
(v) Mathematical tables and graph papers are provided.
Time: 2½ Hrs. Max. Marks: 80
Mathematics (ICSE)_Class X
- 2 -
SECTION-A (40 Marks)
(Attempt all questions from this Section.)
1. Choose the correct answers to the questions from the given options. [15]
(i) For an Intra-state sale, the CGST paid by a dealer to the Central government is `120. If the marked price
of the article is `2000, the rate of GST is
(a) 6% (b) 10%
(c) 12% (d) 16.67%
Answer (c) [1]
Sol. Rate of G.S.T. =
2 120
100
2000
?
?
= 12%
(ii) What must be subtracted from the polynomial x
3
+ x
2
– 2x + 1, so that the result is exactly divisible by
(x –3)?
(a) –31 (b) –30
(c) 30 (d) 31
Answer (d) [1]
Sol. 3
3
+ 3
2
– 2(3) + 1 = 31
(iii) The roots of the quadratic equation px
2
– qx + r = 0 are real and equal if:
(a) p
2
= 4qr (b) q
2
= 4pr
(c) –q
2
= 4pr (d) p
2
> 4qr
Answer (b) [1]
Sol. (–q)
2
– 4pr = 0
? q
2
= 4pr
(iv) If matrix
22
02
A
??
=
??
??
and
2
4
,
04
x
A
??
=
??
??
then the value of x is
(a) 2 (b) 4
(c) 8 (d) 10
Answer (c) [1]
Sol.
2
4 8 4
0 4 0 4
x
A
? ? ? ?
==
? ? ? ?
? ? ? ?
x = 8
(v) The median of the following observations arranged in ascending order is 64.
Find the value of x:
27, 31, 46, 52, x, x + 4, 71, 79, 85, 90
(a) 60 (b) 61
(c) 62 (d) 66
Answer (c) [1]
Sol.
( ) 4
64 62
2
xx
x
++
= ? =
Mathematics (ICSE)_Class X
- 3 -
(vi) Points A(x, y), B(3, –2) and C(4, –5) are collinear. The value of y in terms of x is
(a) 3x – 11 (b) 11 – 3x
(c) 3x – 7 (d) 7 – 3x
Answer (d) [1]
Sol.
3 4 3
73
2 5 2
x
yx
y
--
= ? = -
- - - +
(vii) The given table shows the distance covered and the time taken by a train moving at a uniform speed along
a straight track.
Distance (in m) 60 90 y
Time (in sec) 2 x 5
The values of x and y are:
(a) x = 4, y = 150 (b) x = 3, y = 100
(c) x = 4, y = 100 (d) x = 3, y = 150
Answer (d) [1]
Sol. Distance and time are directly proportional
x = 3 seconds
y = 150 meters
(viii) The 7
th
term of the given Arithmetic Progression (A.P.)
1 1 1
, 1 , 2 ...
a a a
? ? ? ?
++
? ? ? ?
? ? ? ?
is
(a)
1
6
a
??
+
??
??
(b)
1
7
a
??
+
??
??
(c)
1
8
a
??
+
??
??
(d)
7
1
7
a
??
+
??
??
Answer (a) [1]
Sol. a
7
= a + (7 – 1)d
=
1
a
+ 6(1)
=
1
a
+ 6
(ix) The sum invested to purchase 15 shares of a company of nominal value ?75 available at a discount of
20% is
(a) ?60 (b) ?90
(c) ?1350 (d) ?900
Answer (d) [1]
Sol. Money invested = Number of shares × Market value of 1 share
= 15 × (75 – 20% of 75)
= 15 × 60
= ?900
Mathematics (ICSE)_Class X
- 4 -
(x) The circumcentre of a triangle is the point which is
(a) at equal distance from the three sides of the triangle.
(b) at equal distance from the three vertices of the triangle.
(c) the point of intersection of the three medians.
(d) the point of intersection of the three altitudes of the triangle.
Answer (b) [1]
Sol. Circumcentre of a triangle is the point which is at equal distance from the three vertices of the triangle.
(xi) Statement 1: sin
2
? + cos
2
? = 1
Statement 2: cosec
2
? + cot
2
? = 1
Which of the following is valid?
(a) Only 1 (b) Only 2
(c) Both 1 and 2 (d) Neither 1 nor 2
Answer (a) [1]
Sol. We know that, sin
2
? + cos
2
? = 1 and
cosec
2
? – cot
2
? = 1
? Only Statement 1 is valid.
(xii) In the given diagram, PS and PT are the tangents to the circle. SQ || PT and ?SPT = 80°. The value of
?QST is
(a) 140° (b) 90°
(c) 80° (d) 50°
Answer (d) [1]
Sol.
Let ?QST = ?
? ?STP = ?QST = ? [Alternate interior angles]
Page 5
- 1 -
MATHEMATICS
ICSE Board Class X Exam (2024)
Answers & Solutions
GENERAL INSTRUCTIONS
Read the following instructions very carefully and follow them:
(i) You will not be allowed to write during first 15 minutes.
(ii) Attempt all questions from Section A and any four questions from Section B.
(iii) Omission of essential working will result in loss of marks.
(iv) The intended marks for questions or parts of questions are given in brackets [ ].
(v) Mathematical tables and graph papers are provided.
Time: 2½ Hrs. Max. Marks: 80
Mathematics (ICSE)_Class X
- 2 -
SECTION-A (40 Marks)
(Attempt all questions from this Section.)
1. Choose the correct answers to the questions from the given options. [15]
(i) For an Intra-state sale, the CGST paid by a dealer to the Central government is `120. If the marked price
of the article is `2000, the rate of GST is
(a) 6% (b) 10%
(c) 12% (d) 16.67%
Answer (c) [1]
Sol. Rate of G.S.T. =
2 120
100
2000
?
?
= 12%
(ii) What must be subtracted from the polynomial x
3
+ x
2
– 2x + 1, so that the result is exactly divisible by
(x –3)?
(a) –31 (b) –30
(c) 30 (d) 31
Answer (d) [1]
Sol. 3
3
+ 3
2
– 2(3) + 1 = 31
(iii) The roots of the quadratic equation px
2
– qx + r = 0 are real and equal if:
(a) p
2
= 4qr (b) q
2
= 4pr
(c) –q
2
= 4pr (d) p
2
> 4qr
Answer (b) [1]
Sol. (–q)
2
– 4pr = 0
? q
2
= 4pr
(iv) If matrix
22
02
A
??
=
??
??
and
2
4
,
04
x
A
??
=
??
??
then the value of x is
(a) 2 (b) 4
(c) 8 (d) 10
Answer (c) [1]
Sol.
2
4 8 4
0 4 0 4
x
A
? ? ? ?
==
? ? ? ?
? ? ? ?
x = 8
(v) The median of the following observations arranged in ascending order is 64.
Find the value of x:
27, 31, 46, 52, x, x + 4, 71, 79, 85, 90
(a) 60 (b) 61
(c) 62 (d) 66
Answer (c) [1]
Sol.
( ) 4
64 62
2
xx
x
++
= ? =
Mathematics (ICSE)_Class X
- 3 -
(vi) Points A(x, y), B(3, –2) and C(4, –5) are collinear. The value of y in terms of x is
(a) 3x – 11 (b) 11 – 3x
(c) 3x – 7 (d) 7 – 3x
Answer (d) [1]
Sol.
3 4 3
73
2 5 2
x
yx
y
--
= ? = -
- - - +
(vii) The given table shows the distance covered and the time taken by a train moving at a uniform speed along
a straight track.
Distance (in m) 60 90 y
Time (in sec) 2 x 5
The values of x and y are:
(a) x = 4, y = 150 (b) x = 3, y = 100
(c) x = 4, y = 100 (d) x = 3, y = 150
Answer (d) [1]
Sol. Distance and time are directly proportional
x = 3 seconds
y = 150 meters
(viii) The 7
th
term of the given Arithmetic Progression (A.P.)
1 1 1
, 1 , 2 ...
a a a
? ? ? ?
++
? ? ? ?
? ? ? ?
is
(a)
1
6
a
??
+
??
??
(b)
1
7
a
??
+
??
??
(c)
1
8
a
??
+
??
??
(d)
7
1
7
a
??
+
??
??
Answer (a) [1]
Sol. a
7
= a + (7 – 1)d
=
1
a
+ 6(1)
=
1
a
+ 6
(ix) The sum invested to purchase 15 shares of a company of nominal value ?75 available at a discount of
20% is
(a) ?60 (b) ?90
(c) ?1350 (d) ?900
Answer (d) [1]
Sol. Money invested = Number of shares × Market value of 1 share
= 15 × (75 – 20% of 75)
= 15 × 60
= ?900
Mathematics (ICSE)_Class X
- 4 -
(x) The circumcentre of a triangle is the point which is
(a) at equal distance from the three sides of the triangle.
(b) at equal distance from the three vertices of the triangle.
(c) the point of intersection of the three medians.
(d) the point of intersection of the three altitudes of the triangle.
Answer (b) [1]
Sol. Circumcentre of a triangle is the point which is at equal distance from the three vertices of the triangle.
(xi) Statement 1: sin
2
? + cos
2
? = 1
Statement 2: cosec
2
? + cot
2
? = 1
Which of the following is valid?
(a) Only 1 (b) Only 2
(c) Both 1 and 2 (d) Neither 1 nor 2
Answer (a) [1]
Sol. We know that, sin
2
? + cos
2
? = 1 and
cosec
2
? – cot
2
? = 1
? Only Statement 1 is valid.
(xii) In the given diagram, PS and PT are the tangents to the circle. SQ || PT and ?SPT = 80°. The value of
?QST is
(a) 140° (b) 90°
(c) 80° (d) 50°
Answer (d) [1]
Sol.
Let ?QST = ?
? ?STP = ?QST = ? [Alternate interior angles]
Mathematics (ICSE)_Class X
- 5 -
? ?SQT = ?STP = ? [Alternate segment theorem]
? ?PST = ?SQT = ? [Alternate segment theorem]
Now,
In ?PST,
? + ? + 80° = 180°
? ? = 50°
(xiii) Assertion (A): A die is thrown once and the probability of getting an even number is .
2
3
Reason (R): The sample space for even numbers on a die is {2, 4, 6}
(a) A is true, R is false (b) A is false, R is true
(c) Both A and R are true (d) Both A and R are false
Answer (b) [1]
Sol. A is false, R is true
(xiv) A rectangular sheet of paper of size 11 cm × 7 cm is first rotated about the side 11 cm and then about the
side 7 cm to form a cylinder, as shown in the diagram. The ratio of their curved surface areas is
(a) 1 : 1 (b) 7 : 11
(c) 11 : 7 (d)
11 7
:
7 11
??
Answer (a) [1]
Sol. 1 : 1
(xv) In the given diagram, ?ABC ? ?PQR. If AD and PS are bisectors of ?BAC and ?QPR respectively then
(a) ?ABC ? ?PQS
(b) ?ABD ? ?PQS
(c) ?ABD ? ?PSR
(d) ?ABC ? ?PSR
Answer (b) [1]
Sol. ?ABD ? ?PQS
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