Question

Eddie had 20 minutes to do a three-problem quiz. He spent 10 7 10 minutes on question A and 5 2 5 minutes on question B. How much time did he have left for question C?

Answer 1

Answer: Time spent on Question C=3 9/10

Explanation:

Total Time to do the entire quiz= 20 minutes

Time spent on Question A=10 7 /10 minutes

Time spent on Question B=5 2/ 5 minutes

Time spent on Question C=Total Time to do the entire quiz-(Time spent on Question A+Time spent on Question B)

20mins- (10 7 /10 +5 2/ 5)

20mins - ( 15 7+4 /10)

20mins - ( 15 11/10=16 1/10))

20mins -16 1/10

19 10/10 -16 1/10

Therefore Time spent on Question C= 3 9/10