Question

Find the difference between the successor of 45 and the predecessor of 87.

• A. 40
• B. 56
• C. 30
• D. 50

Answer 1

The correct option is A 40

We know that successor of a number is one more than the number, and predecessor is one less than the number.

Therefore, the successor of 45 is 45 + 1 = 46,
and the predecessor of 87 is 87 - 1 = 86

Calculating their difference :
86 - 46 = 40

Thus, option 'a' is the required answer.