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A and B can do a piece of work in 72 days; B and C can do it
in 120 days; A dn C can do it in 4 days. Who among these
will take the least time if put to do it alone?

Question Posted / soundar

Answers were Sorted based on User's Feedback



A and B can do a piece of work in 72 days; B and C can do it in 120 days; A dn C can do it in 4 day..

Answer / kamal

A

Is This Answer Correct ?    44 Yes 6 No

A and B can do a piece of work in 72 days; B and C can do it in 120 days; A dn C can do it in 4 day..

Answer / kamal singh

sounder
w.o mathematical calculation also we can easily determines the ans
A & C = 4 DAYS MEANS BOTH OF THEM TAKES LESSER TIME THAN THE "B" becoz when B includes then time taken for work is too much
so its clear that B will take more time than A & C.

now look at this when B WORKS WITH A IT TAKES 72 DAYS
B WORKS WITH C IT TAKES 120 DAYS
B IS COMMON TO BOTH
IT MEANS WE CAN NEGLECT B's WORK
HENCE IT IS UNDERSTOOD THAT A WILL TAKE LESS TIME THAN OTHERS.

Is This Answer Correct ?    22 Yes 5 No

A and B can do a piece of work in 72 days; B and C can do it in 120 days; A dn C can do it in 4 day..

Answer / jenil

c

Is This Answer Correct ?    24 Yes 15 No

A and B can do a piece of work in 72 days; B and C can do it in 120 days; A dn C can do it in 4 day..

Answer / sunil

A will take least time

Is This Answer Correct ?    9 Yes 1 No

A and B can do a piece of work in 72 days; B and C can do it in 120 days; A dn C can do it in 4 day..

Answer / soundar

Hello Kamal,Sunil I need explanation please

Is This Answer Correct ?    3 Yes 0 No

A and B can do a piece of work in 72 days; B and C can do it in 120 days; A dn C can do it in 4 day..

Answer / hashmizadeh

A

Is This Answer Correct ?    3 Yes 1 No

A and B can do a piece of work in 72 days; B and C can do it in 120 days; A dn C can do it in 4 day..

Answer / iram

Answer is A

Is This Answer Correct ?    0 Yes 0 No

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