Milkman has a container filled with a mixture of milk and water which are in the ratio of 7 : 3. How many parts of the mixture needs to be removed and replaced from the water to obtain milk and water in ratio of 1 : 1?

If two complementary angles are in the ratio of 2:3. find the ratio of square of smaller angle to square of greater?

5-[4-{3-(3-3-6)}] is equal to:

The average monthly income of A and B is Rs.15,050 , and the average monthly income of B and C is Rs.15,350 and the average income of A and C is Rs.15,200. The monthly income of A is.

Directions : A graph showing the price of rice in India during the year 2000 to 2003 is given below. Study the graph carefully and answer the questions.

For the month of May, the graph shows that the price of rice was the lowest in the year

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

Travelling at 60 km/h, a person reaches his destination in certain time. He covers 60% of his journey in 2/5^th of the time. At what speed (in km/h) should he travel to cover the remaining journey so that he reaches the destination right on time ?

A person can hit a target 5 times out of 8 shots. If he fires 10 shots, what is the probability that he will the target twice?