If BOOK-PEN = 8, then PEN-NIB = ?

Correct option is A

Given: BOOK - PEN = 8

First, find the sum of the place values of each word:

BOOK: 2+15+15+11=43

PEN: 16+5+N14=35

Now, subtract the values:

43−35=8

This matches the given result.

Now, solve for PEN - NIB:

PEN: 16+5+14=35

NIB: 14+9+2=25

Now, subtract the values:

35−25=10

So, the correct answer is (A) 10.