Answer / p m r k reddy

sol:

let the amount be X

then the share of eng is ===

= X*(1-(1/5))*(1-(1/3))*(1-(1/4)*(1-(1/7))
= X*(4/5)*(2/3)*(3/4)*(6/7)
= X*(12/35)

Ans: the share of Eng is 12/35

Answer / mohammad

12/35

Answer / birbal kumar

(1/5)+(1/3)+(1/4)+(1/7)+x=1

(84+140+105+60)/420=1-x

389/420=1-x

x=1-389/420

x=31/420

Answer / sank

Alan's share x/5
Now, (x-x/5)(1/3+1/4+1/7)=61x/105
eng's share=x-(x/5+61x/105)=23x/105
ANS: 23/105

Answer / manoj kumar

4/35

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