IBPS Government Jobs Exams Numerical Ability Ratio and Proportion

Ratio of the earnings of A and B is 4 : 7. If the earnings of A increase by 50% and the earnings of B decrease by 25% the new ratio of their earnings becomes 8 : 7. What is earning of A?
A)Rs. 26, 000 B)Rs. 28, 000 C)Rs. 21, 000 D)Data inadequate E)None of these

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IBPS Other Question

If 2x + 3y + z = 55, x+ z- y = 4 and y - x + z = 12, then what is the value of y ?
A)7 B)8 C)12 D)9 E)None of these The wheat sold by a grocer contained 10% type A wheat. What quantity of type B wheat should be added to 150 kg of wheat so that the percentage of type A wheat becomes 5% ? A)150 kg B)135 kg C)50 kg D)85 kg E)None of these