Ratio and Proportion Test No 7

  • The average age of 3 boys is 25 years and their ages are in the proportion 3:5:7. the age of the youngest boy is?





  1. If 20% of the income of A is equal to 30% of the income of B and 40% of the income of B is equal; to 50% of the income of C and total combined income is 33,000 then what is the income of B?





  1. Rs 180 is divided among A,B and C in such a that A’s share is Rs 20 more than B, but Rs 20 less than C. Find C’s share?





  1. If ratio of the first to second is 3:2 and that of second to the third is 1:3 the sum of three numbers is 132, then the second number is?





  1. The students in three classes are in the ratio 1:2:3. if 30 students are increased in each class, the ratio changes to 2:3:4. what is the total number of students in the three classes before the increase?





  1. Rs 1080 is divided into three parts in such a was that half of the first part, one-third of the second part and one- fourth of the third par are equal. Thr third part is?





  1. Two vessels contain milk an water in the ratio 3:4 and 5:2. if these two are mixed together, then what is the ratio of the milk ad water?





  1. Two vessels contain milk and water in the ratio 4:3 and 3:2 , if these two are mixed together, then what is the ratio of the milk and water?





  1. Two vessels contain spirit and alchohol in the ratio 2:1 and 3:2, if these two are mixed in the ratio 3:1 then what is the ratio of spirit and alchohol?





  1. A cat pursues a rat and takes 4 leaps for every 5 leaps of rat, but 3 leaps of cat are equal to 4 leaps of rat. Compare the rates of cat and the rat/







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