By | April 26, 2019

Dear Aspirant, Here We provide previous year question asked in ntpc 2016 exam of quantative aptitude paper with solution and explantion. Practice here railway ntpc previous year question for get highest score in ntpc 2019 exam.For sure success here we provide all shift question of quantative aptitude. There are 30  quantative aptitude question asks in exam.

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Q.1 If three numbers are in the ratio 2 : 3 : 5 and the twice their sum is 100. Find the square of the largest of the three numbers.

A. 225
B. 625
C. 25
D. 100

Ans :- B. 625

Q.2 What is the compound interest on Rs. 48,000 for 2 years at 20 % p.a , if interest is compounded annually?

A. Rs. 69,120
B. Rs. 21,120
C. Rs. 76,800
D. Rs. 72,000

Ans :- B. Rs. 21,120

Q.3 A ladder 20 m long is leaning against a vertical wall. It makes an angle of 30° with the ground. How high on the wall does the ladder reach?

A. 10 m
B. 17.32 m
C. 34.64 m
D. 30 m

Ans :- A. 10 m

Q.4 A piece of cloth costs Rs. 35. If the piece were 4 m longer and each meter were to cost Rs. 1 lesser, then the total cost would remain unchanged. How long is the piece of cloth?

A. 10 m
B. 14 m
C. 12 m
D. 8 m

Ans :- A. 10 m

Q.5 Two poles of the height 15 m and 20 m stand vertically upright on a plane ground. If the distance between their feet is 12 m. find the distance between their tops.

A. 11m
B. 12 m
C. 13 m
D. 14 m

Ans :- C. 13 m

Q.6 The simple interest on a certain sum of money invested at a certain rate for 2 years amounts to Rs. 1200. The compound interest on the same sum of money invested at the same rate of interest for 2 years amounts to Rs. 1290. What was the principal?

A. Rs. 12000
B. Rs. 16000
C. Rs . 6000
D. Rs. 4000

Ans :- D. Rs. 4000

Q.7 A closed wooden rectangular box made of 1 cm thick wood has the following outer dimensions: length 22 cm, breadth 17 cm, and height 12 cm. It is filled to capacity with cement. What is the volume of the cement in the box?

A. 1488 cu. cm
B. 3000 cu. cm
C. 4488 cu. cm
D. 2880 cu. Cm

Ans :- B. 3000 cu. cm

Q.8 The HCF and LCM of two numbers are 3 and 2730 respectively. If one of the numbers is 78. find the other number.

A. 107
B. 103
C. 105
D. 102

SOLUTION :- C. 105 
Explanation:-
We know that, Product of two numbers = HCF × LCM
Let the unknown nuber be ‘a’
⇒ a × 78 = 3 × 2730
⇒ a = 3 × 2730 / 78
⇒ a = 105.

Q.9 If P travelled the first half of a journey at 40 km/hr and the remaining distance at 50 km/hr. what is the average speed of his travel?

A. 44.44 km/hr
B. 53.33 km/hr
C. 45 km/hr
D. 60 km/hr

Ans :- A. 44.44 km/hr

Q.10 Find the LCM of 15, 25 and 29.

A. 2335
B. 3337
C. 2175
D. 2375

Ans :- C. 2175

 

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