Question

Ram and raju can complete the plantation in a garden in 12 days.Ram alone can do this plantation in 20 days In how many days will Raju complete this plantation if he works alone

Answer 1

Answer:

30 days

Step-by-step explanation:

LET X denote RAM

Y denote Raju

unit works per day

1/X + 1/Y= 1/12

1/X = 1/ 20

1/Y = 1/12 - 1/20 = (5-3)/60

1/Y = 2/60 = 1/30

raju complete plantation in 30 days

Answer 2

Raju can complete plantation in 30 days if he works alone

Step-by-step explanation:

Raju and Ram can complete work together in days = 12

Raju and ram together 1 day work =$\frac{1}{12}$

Ram can do work in days = 20

Ram 1 day work = $\frac{1}{20}$

Raju's 1 day work =$\frac{1}{12}-\frac{1}{20}=\frac{1}[30}$

So, Raju alone can complete work in days = 30

Hence Raju can complete plantation in 30 days if he works alone

#Learn more:

Raju can do a piece of work in 5days . Vijay and Raju working together can finish it in 3days . In how many days can Vijay do it alone.

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