a and b can finish a piece of work in 6days and 4 days respectively . a started the work after 2days b also joined the work. find the total time taken to finish the work.
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a's capability is to complete the work in 6days and b can complete in 4 days
if a started the work after 2 day then he require 6+2= 8 dayand b can do in 4+2 =6 day...so total time taken by both is 8+6=14
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if a started the work after 2 day then he require 6+2= 8 dayand b can do in 4+2 =6 day...so total time taken by both is 8+6=14
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One day work of A =1/6
TWO DAY WORK OF A = 1/3
AFTER TWO DAYS B CAMES MEANS 1/3 WORK IS DONE.
REMAINING WORK = 2/3
A AND B ONE DAY WORK = 24/10 DAYS
NO. OF DAYS REQUIRED = 2/3/24/10
= 20/72
TWO DAY WORK OF A = 1/3
AFTER TWO DAYS B CAMES MEANS 1/3 WORK IS DONE.
REMAINING WORK = 2/3
A AND B ONE DAY WORK = 24/10 DAYS
NO. OF DAYS REQUIRED = 2/3/24/10
= 20/72
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