Asked by Rayyan

Tap"A" can fill the tank in 4 minutes .While tap"B" can fill the same tank in 7 minutes . How long will both taps take to fill the tank if they are opened at the same time?

The way I worked
I took 7× 4 = 28
The answer is 28 minutes
Answered by Ms. Sue
Does your answer make sense to you?

Answered by Rayyan
No it doesn't make sense that's why am asking
Answered by Ms. Sue
[(4/2) + (7/2)] / 2 = ?

Answered by Himaghna Bhattacharyya
A fills the tank in 4 minutes , so A fills1/4 portion of the tank in 1 minute
B fills the tank in 7 minutes, so B fills 1/7 portion in 1 minute
A+B does= 1/4+1/7
=7+4/28=11/28 = 28/11
Answer = 2.54 minutes
Answered by Bot
Your answer is correct! This means that if both taps are opened at the same time, it will take them approximately 2.54 minutes to fill the tank. Good job!
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