If each coin carried by the camel adds $0.05$ cm to his hump per day, and the camel carried $15$ coins for $20$ days, what is the total length added to the camel’s hump?

Step-by-step solution

1. Calculate growth per coin per day: $0.05$ cm.
2. Multiply by number of coins: $0.05\times 15=0.75$ cm/day for all coins together.
3. Multiply by number of days: $0.75\times 20=15$ cm total growth.
4. State the final amount: $15$ cm.

Concept tested: Multiplication in context

Published 16 October 2026 · How this solution was prepared and checked