Mathematics MCQs
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671.The ages of two brothers are in the ratio 3:1. If the sum of their ages is 32, what is the age of the younger brother?
672.A number is doubled and then decreased by 6. The result is 24. What is the original number?
673.If the sum of four consecutive numbers is 54, what is the smallest number?
674.What is the lowest form of the ratio 24:36?
675.After a discount of 15%, an item costs Rs 3,400. What was its marked price?
676.A vehicle covers 162 kilometres in 2 hours 15 minutes at a constant speed. What is its speed in kilometres per hour?
677.The mean of six observations is 42. Five observations are 35, 39, 41, 46 and 50. What is the sixth observation?
678.For which value of x does 3(x - 4) + 2 = 2x + 9?
679.Among 120 candidates, 68 can use spreadsheet software, 52 can use presentation software, and 20 can use neither. How many can use both?
680.In a triangle, one angle is twice the smallest angle and the third angle is 30° greater than the smallest angle. What is the largest angle?