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…

The number to be added to each of the numbers 7, 16, 43, 79 to make the numbers in proportion is = ?

Two numbers are respectively 20% and 50% more than a third number. The ratio of the two numbers is:

In an alloy, the ratio of copper and zinc is 5 : 2. If 1.250 kg of zinc is mixed in 17 kg 500 gm of alloy, then the rati…

If A : B = 7 : 9 and B : C = 5 : 4, then A : B : C is -

A mixture contains milk and water in the ratio 5 : 1. On adding 5 litres of water, the ratio of milk and water becomes 5…

If p : q : r = 1 : 2 : 4, then $$\sqrt {5{p^2} + {q^2} + {r^2}} $$     is equal to =

A and B start an enterprise together, with A as active partner. A invests Rs. 4000 and Rs. 2000 more after 8 months. B i…