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CBSE Class 10 Answered

A man is employed to count Rs 10710. He cOunts at the rate of rs 180/min for half an hour. after this he counts at the rate of Rs 3 less every min than the preceding min. Find the time taken to count entire amount. Plzzz give all steps
Asked by | 27 Feb, 2012, 04:20: PM
answered-by-expert Expert Answer

total amount to be counted = 10710

speed at which he counted = 180/min

speed later at which he counted = 177/min

money he counted in first half hour = 5400

now money needed to count = 5310

time = 5310/177

time= 30 min

total time taken = 30 min + 30 min

  = 1 hour

Answered by | 27 Feb, 2012, 04:52: PM

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