NRB Officer Math & Statistics: 20 Essential MCQs for Competitive Exams

Preparing for the Nepal Rastra Bank (NRB) Officer Level or other banking and Lok Sewa Aayog competitive exams requires a solid grasp of quantitative aptitude and data interpretation. Mathematics and Statistics often serve as the deciding factors in the pre-first and written phases. This practice set is specifically curated to help aspirants master the core concepts frequently tested in the Nepalese civil service and banking sectors.

This post features 20 high-yield Multiple Choice Questions (MCQs) covering a wide range of topics, including Arithmetic (Profit and Loss, Time and Work, Percentage), Algebra (Roots of Equations, Sequences), and Statistics (Central Tendency, Standard Deviation, and Set Theory). Each question is designed to mirror the difficulty level and format of actual NRB and competitive examinations.

1) The cube root of 0.000001 is:

a) 0.1

b) 0.01

c) 0.001

d) 0.0001

 

 

2) What is the smallest number that is divisible by 29 and 31?

a) 898

b) 899

c) 900

d) 903

 

 

3) If the side of a square is increased by 25%, its area is increased by:

a) 46.22%

b) 56.25%

c) 65.55%

d) 62.36%

4) A vendor buys lemon at 6 for a rupee, how many for a rupee must be sell to gain 20%?

a) 5

b) 6

c) 8

d) 9

 

 

5) 20 men can reap a field in 20 days. When should 5 men leave the work, if the whole field is to be reaped in 24 days after they leave the work?

a) 2 days

b) 4 days

c) 3 days

d) 5 days

 

 

6) If the mean of 15, a, 5, 12, 10 is 15.4 find the value of:

a) 20

b) 25

c) 35

d) 45

 

7) In how many years, a certain sum of money double at the rate of 10% p.a.

a) 5 years

b) 8 years

c) 10 years

d) 12 years

 

 

8) The sum of the squares of three numbers is 138 and the sum of their products taken two at a time is 131. Find their sum.

a) 35

b) 42

c) 20

d) 18

 

 

9) How many seconds does Puja take to cover a distance of 500 m, if she runs at a speed of 30 km/hr?

a) 60 sec

b) 82 sec

c) 95 sec

d) 100 sec

 

10) The most appropriate measure of central tendency is:

a) Mean

b) Median

c) Mode

d) Quartiles

 

 

11) How many terms of the sequence -12, -9, -6, -3 must be taken to make the sum 54?

a) 11

b) 12

c) 13

d) 14

 

 

12) If A and B are two overlapping sets in a universal set 'U' than n(AUB) = ...

a) n(A) + n(B) - n(AB)

b) n(A) + n(B)

c) n(A) + n(B) + n(ANB)

d) None of above

 

 

13) If 4 is a root of the equation x²-5x+k =0, the value of k is:

a) -2

b) 5

c) 3

d) 4

 

 

14) Standard deviation is considered as total variation in:

a) Mean

b) Median

c) Mode

d) Quartiles

 

 

15) The price of 15 chairs and 2 tables is Rs 4,000. If the price of 4 tables is equal to the price of 10 chairs, find the price of 12 chairs and 3 tables.

a) Rs 2900

b) Rs. 3500

c) Rs. 3900

d) Rs. 4500

 

16) If a sequence of 8 consecutive odd integers with increasing values has 9 as its 7th term. What is the sum of all the terms of the sequence?

a) 32

b) 36

c) 42

d) 48

 

 

17) A man gets Rs. 40 for everyday he works, but is fined Rs. 10 for everyday he is absent. If he got Rs. 700 at the end of 30 days. How many days he was absent from the work?

a) 8 days

b) 6 days

c) 12 days

d) 10 days

 

18) Ankit and Amit had a travel towards opposite directions. Ankit travelled 64km towards east and Amit 35km west. What is the distance between them?

a) 110km

b) 99km

c) 50km

d) 29 km

19) 25% of 30% of 45% is equal to?

a) 0.03375

b) 0.3375

c) 3.375

d) 33.75

 

 

20) 60% of a number is added to 120, the result is the same number. Find the number?

a) 300

b) 200

c) 400

d) 500