The sum of three numbers is 98. If the ratio of the first to second is 2 :3 and that of the second to the third is 5 : 8, then the second number is:

Of the three numbers, the first number is twice the second number and the second number is twice the third number. The average of reciprocal of these numbers is 7/72. The smallest of these numbers is…

Two alloys are both made up of copper and tin. The ratio of copper and tin in the first alloy is 1 : 3 and in second alloy is 2 : 5. In what ratio should two alloys be mixed, to obtain a new alloy su…

Two numbers x and y are in the ratio 11 : 13 and their sum is 48. Then y is

Three numbers are in the ratio 3 : 4 : 5. The total of the largest and the smallest numbers is equal to the other number plus 52. Accordingly, which is the smallest number?

A bag contains coins of Rs. 2, Re. 1 and 50 paisa in the ratio 6 : 7 : 15 respectively. If the total amount in the bag is Rs. 1590, then the number of 1 Re. coins in the bag is :