*Hello and welcome to ***exampundit**. Here is a set of Numerical Ability Quiz for RRB NTPC 2015 2nd Stage CBT 2017.

**1. The price of an
article has been reduced by 25%. In order to restore the original price, the
new price**

**must be increases by?**

(a) 9 1/11

(b) 11 1/9

(c) 33 1/3

(d) 36 2/3

**2. A reduction of 25%**

in the price of rice enables a person to buy 10 kg more rice for Rs. 600. The

in the price of rice enables a person to buy 10 kg more rice for Rs. 600. The

**reduced per kg price of rice is?**

(a) Rs. 30

(b) Rs. 25

(c) Rs. 20

(d) Rs. 15

**3. If x = 5 + 2 √6 ,**

then the value of. (√x + 1/√x)is.

then the value of. (√x + 1/√x)is.

(a) 2√2

(b) 3√2

(c) 2√3

(d) 3√3

**4. The least number,**

that must be added to 1720 so as to obtain a perfect cube, is

that must be added to 1720 so as to obtain a perfect cube, is

(a) 7

(b) 8

(c) 11

(d) 13

**5. The greatest**

number among 260,348, 436 and 524

is.

number among 260,348, 436 and 524

is.

(a) 260

(b) 348

(c) 436

(d) 524

**6. The product of two**

numbers is 0.008. One of the numbers 1/5 of the other.

The smaller number is.

numbers is 0.008. One of the numbers 1/5 of the other.

The smaller number is.

(a) 0.2

(b) 0.4

(c) 0.02

(d) 0.04

**7. P, Q, R are three**

points so that PQ = 3 cm, QR = 5 cm and PR = 8 cm. Number of circles passing

points so that PQ = 3 cm, QR = 5 cm and PR = 8 cm. Number of circles passing

**through the points P, Q, R is.**

(a) 0

(b) 1

(c) 2

(d) 3

**8. AB is the diameter**

of a circle and ABCD is a cyclic quadrilateral in it. If

of a circle and ABCD is a cyclic quadrilateral in it. If

**∠ACD = 40**

**º, then the measure**

**of**

**∠BAD**

is.

is.

(a) 50o

(b) 40o

(c) 80o

(d) 90o

**9. A person went from**

A to B at an average speed of x km/hr. and returned from B to A at an average

A to B at an average speed of x km/hr. and returned from B to A at an average

**speed of y km/hr. What was his average**

speed during the total journey?

speed during the total journey?

(a) x+y/2xy

(b) 2xy/x+y

(c) 2/x+y

(d) 1/x + 1/y

**10. The average**

monthly salary of A and B is Rs. 14, 000, that of B and C is Rs. 15, 600, and

that of A and

monthly salary of A and B is Rs. 14, 000, that of B and C is Rs. 15, 600, and

that of A and

**C is Rs. 14, 400.**

Monthly salary of B is.

Monthly salary of B is.

(a) Rs. 12, 400

(b) Rs. 12, 800

(c) Rs. 15, 200

(d) Rs. 16, 000

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