If the length and breadth of a cuboid are increased by 7% and 6%, respectively, then the percentage increase in its volume is:
Show answer & explanation
Correct answer: B
Explanation
The correct answer is Option 2 i.e 13.42%.
We can find the change in percentage using the net effect = x + y + xy/100
here, x = 7 and y = 6
Net change = 6 + 7 + (6 × 7)/100
⇒ 13 + 42/100
⇒ 13 + 0.42 = 13.42%