Math, asked by rajithavc62gmailcom, 5 months ago

9. ‘A’ can lay railway track between two given
stations in 16 days and 'B' can do the same
job in 12 days. With the help of 'C', they did
the job in 4 days only. Then, 'C' alone can do
the job in how many days?​

Answers

Answered by ronakmeel11
6

answer

9 \times \frac{3}{5} days

Step-by-step explanation:

(a+b+c)'s one days work is 1/4

A's 1 days work is =1/16

B's 1 days work is= 1/12

C's 1 days work is=

 \frac{1}{4}  - ( \frac{1}{16}  +  \frac{1}{12} ) = ( \frac{1}{4}  -  \frac{7}{48} ) =  \frac{5}{48}

so, C can alone do the work in

 =  \frac{48}{5}  = 9 \times \frac{3}{5} days

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