Question

Number system aptitude question for 10th std

Answer 1

. 

If one-third of one-fourth of a number is 15, then three-tenth of that number is:

A.35B.36 C.45D.54



2. 

Three times the first of three consecutive odd integers is 3 more than twice the third. The third integer is:

A.9B.11C.13D.15


3. 

The difference between a two-digit number and the number obtained by interchanging the positions of its digits is 36. What is the difference between the two digits of that number?

A.3B.4C.9D.Cannot be determinedE.None of these


4. 

The difference between a two-digit number and the number obtained by interchanging the digits is 36. What is the difference between the sum and the difference of the digits of the number if the ratio between the digits of the number is 1 : 2 ?

A.4B.8C.16D.None of these

Answer 2

Answer:

Which one of the following is not a prime number?

A. 31

B. 61

C. 71

D. 91

View Answer Discuss

2.

(112 x 54) = ?

A. 67000

B. 70000

C. 76500

D. 77200

View Answer Discuss

3.

It is being given that (232 + 1) is completely divisible by a whole number. Which of the following numbers is completely divisible by this number?

A. (216 + 1)

B. (216 - 1)

C. (7 x 223)

D. (296 + 1)