A can finish a piece of work in 24 days B is 20 more efficient than A and C is 25 more efficient tha...........

Quantitative Aptitude ( CCS) Time and work

A can finish a piece of work in 24 days. B is 20% more efficient than A and C is 25% more efficient than B. Find the time B and C will take to finish the work?

7days

6days

8days

9days

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Explanation:

Answer
9days
Explanation :
A= 1/24
B = 120/100(1/24) = 1/20
C= 125/100(1/20) = 1/16
B+C =(1/20) + (1/16) = 16+20/320 = 36/320 = 8.88 = 9 days

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