RRB NTPC (CBT II) Full Mock Test - 3 - RRB NTPC/ASM/CA/TA MCQ

DOLLAR is USA's currency.
Likewise, LIRA is TURKEY's currency.
Thus, USA : DOLLAR :: TURKEY : LIRA

Circumference of the circle = 1 m
⇒ 2πr = 1 m, where r = radius

Now, area of the circle = πr²

[∵ 1 m² = 10000 cm² ]

Total number of people = 85
Number of people who do not read either novels or poems = 8
So, number of people who read either poems or novels = 85 - 8 = 77
Number of people who read both novels and poems = 45 + 37 - 77 = 82 - 77 = 5
Hence, answer option 4 is correct.

Distance between the starting and end points = 20 + 25 = 45 m

A ∪ B' means the elements which are in A or B or both.
A has 28 elements and B has 32 elements.
'A ⋂ B' means the elements which are in A and B both.
A ⋂ B = (32 + 28) - 40
= 60 - 40
= 20
Therefore, number of elements that are in B only = 32 - 20
= 12
Hence, answer option 3 is correct.

If P : Q : R is 1/3 : 2/3 : 1/4 and Q = 56, then P - R = ?


Therefore, P : Q : R is 4 : 8 : 3.
Given, Q = 56
Then, P = (56 ÷ 8) × 4
= 28
And R = (56 ÷ 8) × 3
= 21
P - R = 28 - 21
= 7

Let the numbers be 15a and 15b.
HCF × LCM = Product of 2 numbers
15 × 180 = 15a × 15b
ab = 12
Possible pair of a and b is (1, 12), (3, 4), (2, 6)
(1, 12) means number is 15 and 180, In this case, sum is not 105 i.e pair is not valid.
(2, 6) here 2 and 6 are not co-prime to each other, i.e pair is not valid.
(3, 4) means number is 45 and 60, In this case, sum is 105 i.e pair is valid.
Therefore, option 4 is the correct answer.
Alternate Method:
Clearly from option (4), 45 and 60,
HCF of 45 and 60 = 15
And LCM of 45 and 60 = 180

The series follows the pattern as given below.
A + 3 = D; D + 4 = H; H + 5 = M and M + 6 = S
C + 4 = G; G + 5 = L; L + 6 = R and R + 7 = Y
Therefore, the missing term is MR.
Hence, answer option 4 is correct.

The first train steamed off from Mumbai to Thane in 1853, covering a distance of 34 km.
The Indian Railways is the largest PSU in the country. It is one of the world's largest railway networks, with Gorakhpur being the world's largest platform.

We know that sides of a polygon

= 360/9 = 40
Therefore, the polygon has 40 sides.

Except medulla, all others are parts of the eye. Medulla is a part of brain.

The seating arrangement is as shown above.
From the arrangement, it is evident that S is sitting third to the right of P.
Hence, answer option 4 is correct.

Mean of 10, 8, 15, 12, K, 25 = 12
So, 10 + 8 + 15 + 12 + K + 25 = 12 × 6
70 + K = 72
K = 72 - 70
K = 2

Plaster of Paris' is the common name of calcium sulphate hemihydrate, with chemical formula CaSO₄. 1/2 H₂O. It is produced by heating gypsum at about 150°C.

Average sales of
 ^{million tonnes}
= 290/6 million tonnes
Average sales of C  ^{million tonnes}
= 260/6 million tonne
Required ratio = = 29 : 26
Hence, answer option 3 is correct.

Area of the verandah
= length × breadth = 40 m × 15 m
= 600 m²
Area of a stone slab = 6 × 5 dm²

So, number of stone slabs
= Area of the verandah/Area of a stone slab

_{Hence, answer option 2 is correct.}

3√5, 2√8, 4√6
(3√5)² = 3 × 3 × 5
= 45
(2√8)² = 2 × 2 × 8
= 32
(4√6)² = 4 × 4 × 6
= 96
Therefore, the correct descending order is:
4√6 > 3√5 > 2√8.