Three pipes A, B and C can fill a tank 30 minutes, 20 minutes, and 10 minutes respectively. When the tank is empty, all the three pipes are opened. A, B and C discharge chemical solutions P,Q and R respectively. What is the proportion of the solution R in the liquid in the tank after 3 minutes?

A boatman goes 2 km against the current of the stream in 1 hour and goes 1 km along the current in 10 minutes. How long will it take to go 5 km in stationary water?

Study the following table carefully and answer the questions given below. Annual income of various individuals over the years (income in lac rupees )

What is the difference between the total annual income of all the individuals in the year 2003 and the total annual income of all the individuals in the year 2007?

In each of the following questions two equations numbered I and II are given. You have to solve both the equations and give answer if (1) If x = y or relation can't be established. (2) If x $\geq$ y (3) If x $\leq$ y (4) If x> y (5) If x< y

In each of the following questions two equations numbered I and II are given. You have to solve both the equations and give answer if (1) If x = y or relation can't be established. (2) If x $\geq$ y (3) If x $\leq$ y (4) If x> y (5) If x< y

In each of the following questions two equations numbered I and II are given. You have to solve both the equations and give answer if (1) If x = y or relation can't be established. (2) If x $\geq$ y (3) If x $\leq$ y (4) If x> y (5) If x< y