Question

two pipes can separately fill a tank in 3 hours and 24 hours respectively if they are both used together how much time will they take to fill the tank​

Answer 1

Answer:

*Step-by-step explanation:

*Let the time taken by the larger pipe =x hrs

*The time taken by smaller pipe is = Y kilometres

*Part of the tank filled by the larger pipe in one hour=1/x

*Part of the tank filled by smaller pipe in 1 hour=1/10+x

*According to the question

*1/x+1/x+10=1/75/8

*1/x+1/x+10=8/75

*x+10+x/x(x+10)=8/75

*75(2x+10)=8(x square +10)

*150x+750=8xsquare+80x

*70x+ 750=8xsquare

*8xsquare-70x-750=0

Factorisation

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