For each 200 rupees spent by the research department, sales departments spend 20 rupees. For every 400 rupees spent by the sales department, the advertising department spends 150 rupees. The triple ratio of the money spent by the research department to the money spent by the sales department to the money spent by the advertising department can be expressed as: 

If the income of A is 10% more than that of B and the income of B is 20% less than that of C, then the incomes of A, B and C respectively are in the ratio

The ratio between the third proportional of 12 and 30 and mean proportional of 9 and 25 is

Sum and product of two numbers is 11 and 18 respectively. What will be the sum of their reciprocals? 

The ratio 75: 125 in its simplest form is written as: 

If P is 15 years old now and Q will be 26 years old after 6 years, what is the ratio of their percentages? 

Four numbers are in the ratio 1 : 2 : 3 : 4 . Their sum is 16. The sum of the first and fourth number is equal to: 

Divide Rs. 7,500 among A, B and C such that A’s share to B’s share is in the ratio 5:2 and B’s share to C’s share is in the ratio 7 : 13. How much will B receive ?