Nisha can solve a set of 5 math problems in
12 minutes. At this rate, how long will it take
her to solve 20 sets of 7 math problems?
F 58 minutes
G 5 hours 16 minutes
H 48 minutes
J 5 hours 36 minutes

Question

anonymous · Answer

it is letter J.

anonymous · Answer

just follow these steps.

5/12=7/x          x there is the time for a set

do the cross multiplication.

5x=84
x=16.8, but there are 20 sets so, all we have to do is multiply this by 20.

x=16.8(20)= 336 minutes

336 minutes is equal to 5 hours and 36 minutes.

anonymous · Answer

thank you so much

anonymous · Answer

you are welcome. can you become my fan?