Question

 Baban and Ramsukh together erect a shed in 12 days.Baban alone can do it in 20 days .How much time would Ramkush take working alone to erect the shed?​

Answer 1

Step-by-step explanation:

Baban & Ramsukh together 12 days

Baban alone =20 days

Time Taken =20:12 (5:3)

speed =3:5

baban and ramsukh=5

baban=3

ramsukh=5-3=2

so,

5 12 days

2 x

x=5*12/2=30 days

Answer 2

Answer:

30 DAYS.

Step-by-step explanation:

BABAN AND RAMSUKH TOGETHER TAKE 12 DAYS TO ERECT A SHED,

THEREFORE, ONE DAY'S BABAN AND RAMSUKH TOGETHER= 1/12.

NOW BABAN ALONE CAN ERECT THE SHED IN 20 DAYS,

THEREFORE BABAN'S ONE DAY WORK =1/20

THEREFORE RAMSUKH'S ONE DAY ALONE WORK = 1/12-1/20=5-3/60=2/60=1/30.

RAMSHKH ALONE CAN ERECT THE SHED IN 30 DAYS.

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