TNPSC Simplification Quiz: BODMAS, Fractions, Decimals, HCF-LCM, Squares & Cubes

Q1 Simplify: 8 + 4 ÷ 2 × 3 − 5

Easy

A. 9 B. 15 C. 5 D. 11

Q2 Simplify: 12 + [18 − {15 − (8 − 3)}]

Medium

A. 18 B. 20 C. 22 D. 24

Q3 Simplify: 2/3 + 3/4 − 1/6

Medium

A. 5/4 B. 4/5 C. 7/6 D. 11/12

Q4 Simplify: (2/3 of 3/4) ÷ (5/6 of 2/5)

Medium

A. 1 B. 3/2 C. 2/3 D. 5/4

Q5 Simplify: 12.5 × 0.4 + 3.6 ÷ 0.9

Easy

A. 8 B. 9 C. 9.4 D. 10

Q6 The HCF of two numbers is 12 and their LCM is 144. If one number is 36, find the other number.

Medium

A. 42 B. 48 C. 54 D. 60

Q7 Find the greatest number that divides 245 and 1029, leaving remainder 5 in each case.

Hard

A. 12 B. 14 C. 16 D. 18

Q8 Find the value of √7921.

Medium

A. 83 B. 87 C. 89 D. 91

Q9 Find the value of ∛175616.

Hard

A. 54 B. 56 C. 58 D. 62

Q10 Which of the following numbers is exactly divisible by 11?

Easy

A. 2531 B. 4521 C. 7942 D. 9042

Q11 Find the remainder when 2^50 is divided by 7. (TNPSC-pattern remainder/cyclicity question)

Hard

A. 1 B. 2 C. 4 D. 6

Q12 Simplify using algebraic identity: (25.4 × 25.4 − 14.6 × 14.6) ÷ (25.4 − 14.6)

Medium

A. 10.8 B. 25.4 C. 40 D. 56.6