Number System MCQs with Answers Exercise V

Ques 1 Number System

If the nine-digit number ‘8475639AB’ is divisible by 99, then what is the value of A and B ?

A A = 4, B = 6

B A = 4, B = 8

C A = 6, B = 7

D A = 2, B = 2

Ques 2 Number System

If a nine-digit number 489x6378y is divisible by 72, then the value of √(8x + 6y) will be:

A 2

B 4

C 6

D 8

Ques 3 Number System

The unit digit in the product 122¹⁷³ is...

A 3

B 4

C 9

D 2