Question
If numerator of a fraction is decreased by 30% and the
denominator of the same fraction is increased by 40%, then what fraction of the old is the new fraction? type-sscSolution
let the fraction = x/y Decrease by 30% in numerator and increase by 40% in denominator. =(x×70/100)/(y×140/100) =7x/14y=x/2y fraction of the old is the new fraction=(x/2y) ×y/x =1/2.
169, 224, 293, 385, 497, 629
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8, 12, 23, 40, 66, 103
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78, 66, 51, 39, 20, 12
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In each of the following number series, one term is wrong. Find the wrong term.
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