Loading....
Coupon Accepted Successfully!

 

Question 1

Find the value of A and B in.
Solution:
A + 5 = 9 ⇒ A = 4

5 + A = B ⇒ B = 5 + 4 = 9.

A = 4, B = 9.
 

Question 2

Find the value of A in

 

Solution:
 75
 

Question 3

Find the value of A in.
Solution:
.

Question 4

Find the value of A and B in.
Solution:
.

Question 5

Find the value of A in.
Solution:
.

Question 6

If 27y is a multiple of 9 where y is a digit,. What is the minimum value of y.

Solution:
The sum of digits

, 270 is divisible by 9.

Question 7

If 54 x is a multiple of 3, where x is a digit, what is the value of x.


Solution:

divisible by 3

divisible by 3

divisible by 3

divisible by 3

.

Question 8

Check the divisibility of 34567 by 9.


Solution:
The sum of the digits is 3 + 4 + 5 + 6 + 7 = 25. This number is not divisible by 9.

Therefore 34567 is not divisible by 9.

Question 9

Check the divisibility of 56748 by 3.


Solution:
The sum of digits is 5+6+7+4+8 = 30 is divisible by 3

By the actual division

∴ 56748 is divisible by 3.

Question 10

Check the divisibility of 7986 by 9.


Solution:
The sum of digits is 7+9+8+6 = 30

30 is not divisible by 9

Therefore 7996 is not divisible by 9.

Question 11

Check the divisibility of 58671 by 9.


Solution:
The sum of digits is 5+8+6+7+1 = 27.

27 is divisible is 9.

58671 is divisible by 9.

Question 12

23z is a multiple of 9. Find the value of z.


Solution:
The sum of digits is 2+3+z=9

5+z=9

∴ The number 234 is divisible by 9.

Question 13

Check the divisibility of 5386 by 2.


Solution:
The one's digit of 5386 is 6. 6 it is divisible by 2.

Therefore 5386 is divisible by 2.

Question 14

Check the divisibility of 5005 by 5.


Solution:
The one's digits of 5005 is 5. 5 is divisible by 5.

5005 it is divisible by 5.

Question 15

If 11z3 is a multiple of 9 where z is a digit, what is the value of z?


Solution:
Sum of digits 1 + 1 + z + 3 = 5 + z = 9

1143 is divisible by 9.

Question 16

If 43x1 is a multiple of 3 where x is a digit. What is the value of x.


Solution:

divisible by 3

divisible by 3

divisible by 3

divisible by 3

Hence x can take the values 1, 4, 7, 10.

Question 17

12z is a multiple of 9, what is the value of z?


Solution:
1 + 2 + z = 3 + z

is divisible by 9

∴ 126 is divisible by 9

The value of z is 9.

Question 18

Check the divisibility of 19 by 10.


Solution:
The one's digit is 9, so 19 is not divisible by 10.

Question 19

Check the divisibility of 25 by 5.

Solution:
The one's digit is 5, so 25 is divisible by 5.

Question 20

Check the divisibility of 23 by 2.

Solution:
The one's digit is 3, so 23 is not divisible by 2.




Test Your Skills Now!
Take a Quiz now
Reviewer Name