CATArithmetic > Easy848484787878868686808080✅ Correct Option: 1Related questions:CAT 2021 Slot 2A box has 450450450 balls, each either white or black, there being as many metallic white balls as metallic black balls. If 40%40 \%40% of the white balls and 50%50 \%50% of the black balls are metallic, then the number of non-metallic balls in the box isCAT 2017 Slot 1The number of girls appearing for an admission test is twice the number of boys. If 30%30\%30% of the girls and 45%45\%45% of the boys get admission, the percentage of candidates who do not get admission isCAT 2017 Slot 1Arun's present age in years is 40%40\%40% of Barun's. In another few years, Arun's age will be half of Barun's. By what percentage will Barun's age increase during this period?