Question

What rate per cent is 1 min 12 s to lh ?
(A) 2%
(B) 3%
(C) 4%
(D) 5%​

Answer 1

A) 2% to an Hour

Step-by-step explanation:

i hope it will help you...

Answer 2

Step-by-step explanation:

For converting minutes to seconds multiply it by 60.

1 minute 12 seconds = {(1 x 60) + 12}

seconds = (60 + 12) seconds.

= 72 seconds.

For converting hours to seconds multiply by 3600.

1 hour = 60 minutes = (60 x 60) seconds= 3600 seconds.

Now, to find rate percent multiply by 100.

Hence, 1 minute 12 seconds is

(72/3600 x 100) % of 1 hour = 2%

Therefore, the rate percent = 2%.