Question

Can someone please answer this correctly (ace/genius) only and i will mark as brainliest
+25 points

Answer 1

Answer:

41 minute.

Step-by-step explanation:

Time( minutes ) taken in doing homework : 90 minute

Time taken in reading : ( 2 / 3 ) hour

            ⇒ ( 2 / 3 ) x 60 min      { 1 hr = 60 min }

            ⇒ 2 x 20 min

            ⇒ 40 minute

Time taken in making lunch : 540 sec

           ⇒ 540 / 60 min        { 1 sec = 1 / 60 min }

           ⇒ 9 min

Time taken in making lunch and reading = 40 min + 9 min = 49 min.

   we are said to find the time taken more than doing these last two works in comparison to the first one.

      ⇒ 90 min - 49 min

      ⇒ 41 min

 

Answer 2

Answer:

Step-by-step explanation:

First convert all the information in mins

Given :

Total time spent in doing homework = 90 mins

Time spent in reading = 2/3 hr = 2/3×60 mins = 40 mins

Time spent in making lunch = 540 secs = 540/60 mins = 9 mins

Total time spent in reading and making lunch = 49 mins

So the amount of the more time he spent on doing homework = 90 - 49

= 41 mins