Question

Circle the correct option: A, B, C, or D.

5. A box containing 30 identical books has a mass of 8.6 kg. The same box containing 50 of these books has a mass of 13.1 kg. What is the mass of each book?

A 0.225 kg
B 2.25 kg
C 4.5 kg
D 0.025 kg

Answer 1

Its 0.225 kg (A) Just did the problem right now and got it right :)

Answer 2

Option A

Explanation:

So we have:

30 books having a mass of 8.6kg

50 books having a mass of 13.1kg

Subtract 30 from 50 (50 - 30) = 20

Subtract 8.6 From 13.1 (13.1 -8.5) = 4.5

To find the mass of each book, we divide the mass by how many books we have left after subtraction.

4.5/20 = 0.225 kg

Hope this helps.

Good luck ✅.