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five boys alan,ben,chris,den and eng share a sum of money
alan takes 1/5 of the sum of money
after alan has taken his share,ben takes 1/3 of the
remaining money
chris takes 1/4 of the remaining money
den takes 1/7 of remaining money
after den has taken his share, eng takes all remaining money
what fraction of the sum of money is eng's share?
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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
| Is This Answer Correct ? | 51 Yes | 0 No |
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
| Is This Answer Correct ? | 0 Yes | 19 No |
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
| Is This Answer Correct ? | 0 Yes | 20 No |
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