NinetynineCAT 2021 Slot 2 QA Q7 Ratio, Mixtures & Averages
Question 7 of the Quantitative Ability (QA) section, CAT 2021 Slot 2, with CAT's official answer.
A box has 450 balls, each either white or black, there being as many metallic white balls as metallic black balls. If 40% of the white balls and 50% of the black balls are metallic, then the number of non-metallic balls in the box is
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Answer: 250 Ratio, Mixtures & Averages TITA
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