Mathematics MCQs
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5131.The mean of 14 numbers is 6. What will be the new mean if 3 is added to every number?
5132.In a class, there are 30 boys and 20 girls. What percentage of the class are boys?
5133.If there are 20 girls and 15 boys in a class, the ratio of number of girls to the number of boys is
5134.What is 50% of 50% of 100?
5135.Three numbers are in the ratio 2 : 3 : 4 and their H.C.F. is 12 . The L.C.M. of the numbers is _____?
5136.Solve by Factoring x² - 3x - 4 = 0?
5137.Simplify the expression: 2x² + 3x²?
5138.A batsman scored 110 runs which included 3 boundaries and 8 sixes. What percent of his total score did he make by running between the wickets?
5139.If A = x% of y and B = y% of x, then which of the following is true?
5140.If the mean of 9, 8, 10, x, 12 is 15, find the value of x?