3 pums, working 8 hours a day, can empty a tank in 2 days. How many hours a day must 4 pumps work to empty the tank in 1 day?

Created: 2 years ago | Updated: 1 year ago

Updated: 1 year ago

Uttara Bank Ltd উত্তরা ব্যাংক | অ্যাসিস্ট্যান্ট অফিসার | 23-07-2022 গণিত নল ও চৌবাচ্চা (Pipes and cistern)

ব্যাখ্যা

313

Best Ans:

3 Pumps empty a tank in 2 days = by working 8 hours

3 Pumps empty a tank in 1 days = by working (8*2) hours

1 Pumps empty a tank in 1 days = by working (8*2*3) hours

So, 4 Pumps empty a tank in 1 days = by working (8*2*3)/4 hours

= 12 hours (Ans)

1 year ago

0 0

RAJIB ROY

নল ও চৌবাচ্চা (Pipes and cistern)