c and d can finish a piece of work in 16 days and 12 days respectively. c started the work and worked at it for 2 days. he was then joined by d. find the total time taken to finish the work
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Answer : 8 Days
As C worked for 2 days alone, 1/8 ( 6/48 ) of the work was completed.
Then when d joined, 1/16 + 1/12 of the work was completed per day..
1/16 + 1/12 = 3/48 + 4/48 = 7/48 of the work was completed per day
As 1/8 = 6/48 of the work was completed by c, 42/48 was remaining.
42 ÷ 7 = 6
So, 6+2 = 8 days were taken to complete the work..
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As C worked for 2 days alone, 1/8 ( 6/48 ) of the work was completed.
Then when d joined, 1/16 + 1/12 of the work was completed per day..
1/16 + 1/12 = 3/48 + 4/48 = 7/48 of the work was completed per day
As 1/8 = 6/48 of the work was completed by c, 42/48 was remaining.
42 ÷ 7 = 6
So, 6+2 = 8 days were taken to complete the work..
Hope It Helped!
Please Click the ‘Thanks’ Button and Mark me as Brainliest..
Stay Learning.. Stay Smiling.. :D
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