Question

5. Convert the following into seconds: (a) 3 hrs (b) 5 hrs LES (c) 5 hrs 45 mi​

Answer 1

a) 10,800

b) 18,000

c) 20,700

Explanation:

A

3 hours x
`(60minutes)/(1 hour)` x
`(60 seconds)/(1minute)` cross cancel the words and multiply

10,800

B

The same as a, but replace 3 with 5.

C

The same as b, but add

45min x
`(60 seconds)/(1minute)`

2700

2700 + 18000 = 20,700