Insurance maths problem

Question

an insurance company claims department reported that 45% of the claims they dealt with over the last month related to motor policie, and 30% of those involved drivers under 25 years of age. The claim depar dealt with 2400 claims last month, so how many were motor policy claims involving drivers under 25?

Answer 1

2400 x 45% = 2400 x 0.45 = 1080 were motor vehicle policies

1080 x 30% = 1080 x 0.30 = 324 also involved drivers under 25

324 involved both motor vehicles and drivers under 25