Question

10% of salty sea water contained in a flask was poured out into a beaker. After this, a part of the water contained in the beaker was vapourised by heating and due to this, the percentage of salt in the beaker increased m times. If it is known that after the content of the beaker was poured into the flask, the percentage of salt in the flask increased by x%. Find the original quantity of sea water in the flask.

Answer 1

Answer:

10%

Explanation:

Answer 2

Answer:

Original % of salt in the flask = A

let 100 ml solution is there. 

10 % of this is taken out ,it will have A/10 gm salt.

But by evaporation this becomes = A/10' 

This salt is added back to the flask so total salt in the flask now

= 0.9A +A/10'

actual rise in salinity= x%

so total salt will be =0.9(A+x) 

=0.9A+ A/10'

= 0.9(A+x) 

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