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10 BOYS TAKE 12 HOURS TO DIG A WELL ,HOW MUCH TIME WILL 8 BOYS TAKE TO DO THE SAME ?
 

Asked by nissi.rakesh 20th March 2017, 12:59 PM
Answered by Expert
Answer:

Let the number of hours taken by 8 boys be x.

Number of boys 10 8
Number of hours 12 x

Since the more less boys work, the more time it will take.

begin mathsize 12px style 10 over 8 equals straight x over 12
rightwards double arrow straight x equals fraction numerator 10 cross times 12 over denominator 8 end fraction
rightwards double arrow straight x equals 15 space hours
Hence comma space 8 space boys space will space take space 15 space hours space to space do space the space same space work. end style

Answered by Expert 20th March 2017, 2:45 PM
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