Ratio and Proportion Test No 8

  1. If 30% of a is equal to 48% of b, what is a:b?





  1. If a:b=2:5 and b:c = 3:4 . what is a:bc?





  1. what is the third proportional to 8,12?





  1. what is the mean proportional between 8 and 50?





  1. what is the fourth proportional to 3,4,12?





  1. if A : b = 2:3 ,  b:c = 9:4, c:d = 8:1 what is a:d?





  1. Rs 1989 is divided in to two parts in the ratio 2:7, what is the value of the second part (in Rs)?





  1. Two numbers are in the ratio 3:4. if each number is increased by 6 the ratio becomes 4:5, find the smaller number?





  1. Two numbers are in the ratio 3:2. if 20 is subtracted from each of them, the ratio becomes 5:3. what is the smaller number of two ?





  1. The incomes of A and B are in the ratio 3:2 and their expenditures are in the ratio 5:3. if each saves Rs 2000. what s the incomes of A in rs?







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