How much Time it take for the same Work ?
Sir / madam,
My question is
Some work is done by two people in 24 minutes. One of them can do this work alone in 40 minutes. How much time does the second person take to do the same work ?
a. 48 Min
b. 16 Min
c. 72 Min
d. 60 Min
Advance Thanks,
R.Rengaraj
{SCE 31/2008/Pg 4 of 85}
{On this forum my 8th Question.}
My question is
Some work is done by two people in 24 minutes. One of them can do this work alone in 40 minutes. How much time does the second person take to do the same work ?
a. 48 Min
b. 16 Min
c. 72 Min
d. 60 Min
Advance Thanks,
R.Rengaraj
{SCE 31/2008/Pg 4 of 85}
{On this forum my 8th Question.}
Replies
-
tech_vaibhav_eelet us give a value to the total amount of work =x
person a: 40 mins. --> x
24 mins. --> 24x/40
person b: y mins. -->x
24mins -->24x/y
when working together , they complete the whole work in 24 mins.
therefore,
24x/40 +24x/y = x
y=60 mins..
hence , person b completes the same work in 60 minutes. -
rengarajSir,
Thanks for your answer.
R.Rengaraj
You are reading an archived discussion.
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