A agricultural formulation consists of active ingredient A

MATHEMATICS · Single correct · CBSE · Mathematics · Fractions in Disguise · Fractions in Disguise

Problem

A 250.0 g250.0\,\text{g} agricultural formulation consists of active ingredient A, inert filler B, and water. Initially, the formulation is 15.0%15.0\% A by mass and 25.0%25.0\% B by mass, with the remainder being water. After the container is left open, exactly 30.0 g30.0\,\text{g} of water evaporates, while no A or B is lost. What is the new mass percent of active ingredient A in the formulation? (a) 18.8\% (b) 17.0\% (c) 15.0\% (d) 13.6\%

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