A 12 gallon tub has a faucet that lets water in at a rate of 3 gallons per minute, and has a drain that lets water out at a rate of 1.5 gallons per minute. If you start with 3 gallons of water in the tub, how long will it take to fill the tub completely?
Created: 6 years ago |
Updated: 3 years ago
best des
Hints: tub টি ভরতে আরো পানি লাগবে (12 - 3) gallons = 9 gallons
1 মিনিটে পূর্ণ হয় ( 3 - 1.5) gallons = 1.5 gallos
1.5 gallons পূর্ণ হয় 1 মিনিটে
9 gallons পূর্ণ হয় 9/1.5 মিনিটে = 6 মিনিটে
Md Azizur Rahman
Founder of Satt
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