Number System Questions for CTET

Solve the following questions:

Question 1. 935421 ×625= ?

a. 542622125

b. 584632125

c. 544638125

d. 584638125

Answer: d

Question 2. Which of the following is a prime number?

a. 9

b. 8

c. 4

d. 2

Answer: d

Question 3. What is the largest 4 digit number exactly divisible by 88?

a. 9944

b. 9999

c. 9988

d. 9900

Answer: a

Question 4.  {(481 + 426)2 - 4 × 481 × 426} = ?

a. 3025

b. 4200

c. 3060

d. 3210

Answer: a

5. (64 - 12)2 + 4 × 64 × 12 = ?

a. 5246

b. 4406

c. 5126

d. 5776

Answer: d

6. 121 × 54 = ?

a. 68225

b. 75625

c. 72325

d. 71225

Answer: b

7. If (232 + 1) is completely divisible by a whole number, which of the following numbers is completely divisible by this number?

a. (296 + 1)

b. (7 × 223 )

c. (216 - 1)

d. (216 + 1)

Answer: a

8. How many of the following numbers are divisible by 132?

264, 396, 462, 792, 968, 2178, 5184, 6336

a. 4

b. 3

c. 6

d. 8

Answer: a

9. All prime numbers are odd numbers

a. True

b. False

c. Both A and B

d. None of A and B

Answer: b

10. 5216 × 51 = ?

a. 266016

b. 212016

c. 266436

d. 216314

Answer : A