Question
What approximate value should replace the question mark? 19.98% of 500.05 + ?% of 400.02 = 259.97
Solution
ATQ, 19.98% of 500.05 + ?% of 400.02 = 259.97 20% of 500 + ?% of 400 = 260 20/100 × 500 + ?% × 400 = 260 ?% of 400 = 260 − 100 = 160 ? = (160/400) × 100 = 40
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