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Alligations

12500 students appeared in an exam. 50% of boys and 70% of girls cleared examination. If total percent of student qualifying is 60% , how many girls appeared in exam ?


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Two blends of a commodity costing Rs. 35 and Rs. 40 per kg respectively are mixed in the ratio 2 : 3 by weight. If one-fifth of the mixture is sold at Rs. 46 per kg and the remaining at the rate Rs. 55 per kg, the profit percent is -

12500 students appeared in an exam. 50% of boys and 70% of girls cleared examination. If total percent of student qualifying is 60% , how many girls appeared in exam ?

60 kg of an alloy A is mixed with 100 kg of alloy B. If alloy A has lead and tin in the ratio 3 : 2 and alloy B has tin and copper in the ratio 1 : 4, the amount of tin in the new alloy is -

12500 students appeared in an exam. 50% of the boys and 70% of the girls cleared the examination. If the total percent of student qualifying is 60%

how many girls appeared in the exam ?

Alligations

Arithmetic-Aptitude