Pulse is now being sold at Rs. 20 a kg. During last month its rate was Rs. 16 per kg. By how much percent should a family reduce its consumption so as to keep the expenditure fixed?

A tank contains a mixture of 80 litre of milk and water. 70% of the milk and 30% of the water are drawn, therefore 55% part of the tank become empty. Find the initial quantity of milk and water in the tank.

If sin3θ=cos(20° - θ) then find out  the value of θ.

Directions : The graph shows the demand and production of different companies. Study the graph and answer the following questions.

What is the lowest production company?

Directions : The graph shows the demand and production of different companies. Study the graph and answer the following questions.

What is the second large demand company?

Directions : The graph shows the demand and production of different companies. Study the graph and answer the following questions.

The production of company A is approximately what percent of the demand of company C?

Directions : The graph shows the demand and production of different companies. Study the graph and answer the following questions.

The demand of company B is what percentage of the production of company F ?

Directions : The graph shows the demand and production of different companies. Study the graph and answer the following questions.

What is the ratio of companies with high demand to production and companies with less than production?