Number System
When (21)² is subtracted from the square of a number the answer obtained is 1584. What is the number ?

35
65
55
45

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Number System
The difference between a two-digit number and the number obtained by interchanging the digit is 36. What is the difference between the sum and the difference of the digits of the number if the ratio b

4
None of these
8
16

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP
MORE MCQ ON Number System