Question

5. Tina, Farhan and Rumel together complete a work in 6 days. If Tina alone completes the work in 15 days and Farhan in 20 days then in how many days will Rumel alone complete the work?​

Answer 1

Answer:

Rumel will do it alone in 20 days

Step-by-step explanation:

According to the question.

TINA + FARHAN + RUMEL = 1/6 days

TINA = 1/15

FARHAN = 1/20

RUMEL = ( TINA + FARHAN + RUMEL ) - ( TINA + FARHAN)

$\frac{1}{6} - ( \frac{1}{15} + \frac{1}{20} ) = \frac{10}{60} - \frac{7}{60} = \frac{3}{60} = \frac{1}{20}$

So it means rumel will do it in 20 days ..

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