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Ram can complete a job in 15 days. Shyam alone can complete the same job in 10 days. Ram works for 9 days and then the remaining job is completed by Shyam. How many days will it take shyam to complete the remaining job alone?
  • a)
    5 days
  • b)
    8 days
  • c)
    6 days
  • d)
    4 days
Correct answer is option 'D'. Can you explain this answer?
Verified Answer
Ram can complete a job in 15 days. Shyam alone can complete the same j...
GIVEN:
Ram can complete a job in 15 days
Shyam can complete the same job in 10 days
Ram works for 9 days and then the remaining job is completed by Shyam
CALCULATION:
Ram’s 1 - day work = 1/15
∴ Ram’s 9 days’ work = 9/15 = 3/5
∴ Remaining work = 1 – 3/5 = 2/5 part of the work.
Shyam completes 1 work in 10 days.
∴ Shyam will complete 2/5th part of the work in 10 × 2/5 = 4 days.
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Most Upvoted Answer
Ram can complete a job in 15 days. Shyam alone can complete the same j...
Given data:
Ram completes the job in 15 days
Shyam completes the job in 10 days
Ram works for 9 days

To find:
The number of days Shyam will take to complete the remaining job alone.

Solution:
Let the total work be 150 units (LCM of 15 and 10).
Ram's efficiency = 150/15 = 10 units/day
Shyam's efficiency = 150/10 = 15 units/day

Ram works for 9 days, so the work completed by him = 10 * 9 = 90 units
The remaining work = 150 - 90 = 60 units

Now, Shyam has to complete the remaining 60 units of work.
Shyam's efficiency = 15 units/day
Time taken by Shyam to complete the remaining work = 60/15 = 4 days

Therefore, the answer is option D, i.e., Shyam will take 4 days to complete the remaining job alone.
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Ram can complete a job in 15 days. Shyam alone can complete the same job in 10 days. Ram works for 9 days and then the remaining job is completed by Shyam. How many days will it take shyam to complete the remaining job alone?a)5 daysb)8 daysc)6 daysd)4 daysCorrect answer is option 'D'. Can you explain this answer?
Question Description
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