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Job

Solve the following mathematical problems:

A, B and C can complete an work in 12, 15 and 25 days resctively. A and B started working together where area C worked with them in every third day. find the number of days required to complete the work. (work & time)

Created: 2 years ago | Updated: 1 year ago
Updated: 1 year ago
Answer :

In first 6 days, C will work just two days but A and B will work 6 days.

So total work done by them in 6 days will

= (6×112)+(6×115)+(2×125)= 

Remaining work =1-4950=150 part of the work.

So. (A and B) 1 day's work= 112+115=4+560=960=320

In 7th day. C will not help them. Only A and B will do the 150  part of the work because 320>150 

Now, 320 part of the work is done by A and B in 1 day 

150 part of the work is done by A and B in = 203×150=215 day 

Total work will be completed in = 6+215=6215 days 

ans. The number of days required to complete the work is 6215 days 

1 year ago

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