Question

What is 1 minute 30 sec of half hour in terms of percentage?

Answer 1

half hour =30 mins=30*60=1800secs
1min 30 secs =60+30=90secs
1800*x/100=90
therefore solving this eqn we will get
ans:5%

Answer 2

Answer:

5% of half an hour is 1 min 30 sec

Step-by-step explanation:

First of all we convert the all units of time in sec as it is the smallest unit of time

1 min = 60 sec.

1 min. 30 sec =60 +30 90 sec.

Half hour= 30 min.

                =30 ×60=1800 sec

Let x% of 1800 sec= 90

    (x/100)×1800 = 90

            18x= 90

                x= 90/18

               x= 5%