Math, asked by 2017aggaikwad, 1 year ago

2 men and 7 chlindren complete a certain peiece of wokk in 4 days and 4 men and 4 children complete the same in 3 days find number of days required to complete the same work by one men and 1 child

Answers

Answered by priya23774828
0
2/x+7/y=1/4
4/x+4/y=1/3
1/x=a   1/y=b
2a+7b=1/4
4a+4b+1/3
if u solve tis eq u will get the ans dude

priya23774828: and 1/y=b so y=60
2017aggaikwad: and x=15 and y=60
priya23774828: thats the answer
2017aggaikwad: how it is possible
priya23774828: 1/x=a
priya23774828: sp1/x
priya23774828: wait
priya23774828: 1/x=a 1/x=15 cross multiply so now x=15
priya23774828: 1/y=b so i/y=60 cross multiply u will get y=60
priya23774828: ok??
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