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A tap supplies water at 10^@ C and anoth...

A tap supplies water at `10^@ C` and another tap at `100^@ C`. How much hot water must be taken so that we get `20 kg` of water at `35^@ C`

A

`7.2kg`

B

`10kg`

C

`5.6kg`

D

`14.4kg`

Text Solution

Verified by Experts

The correct Answer is:
C
If m kg hot water is taken
`ms(100-35)=(20-m)s(35-10)`
`"or" 64m =25 (20-m)`
` "or "m =(50)/(9)~~5.6kg `
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