Question

1. A solution of salt and water contains 15% salt by
weight 30 kg of water evaporates and the solution
now contains 20% of the salt. The original quantity
of the solution is
(a) 100 kg
(b) 110 kg
(c) 115 kg
(d) 120 kg
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Answer 1

Answer:

Option (d) 120kg is the answer.