1.

ABC can do a part of work in 15 days. If b can do the work in 30 days and c can do the work in 40 days in how many days will a can do the work .Who comes first will become as brainliest

Answer»

Ánsweŕ :

Given :

A + B + C = 15 days

B = 30 days

C = 40 days.

According to the question :

A + B + C ' s 1 day WORK = 1 / 15

B ' s 1 day work = 1 / 30

C ' s 1 day work = 1 / 40.

LCM = 15 , 30 , 40

= 720

Equation :

☞ 1 / 15 - 1 / 30 - 1 / 40

☞ 48 - 24 - 18 / 720

☞ 48 - 42 / 720

☞ 6 / 720

☞ 120.

Therefore, A can do the

work in 120 days



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