The line graph shows the number of deaths due to dengue in a certain state. Study the diagram and answer the following questions.

In which year were the number of deaths lesser than that of the previous year?

A 220 metres long train takes 33 seconds to cross a 440 metres long bridge. How much time (in seconds) will the train take to cross a 350 metres long bridge?

X and Y together can do a piece of work in 30 days. Y and Z together can do the work in 20 days. X starts the work and works for 15 days then Y takes that work and works for 27 days. Finally Z finishes the remaining work in 9 days. In how many days Y alone can complete the entire work?

What is the simplified value of 

125 - 24 - 124-23+123 - 22 - 122 - 21+ 121 - 20 ?

A shopkeeper marks the price of his table 30% above the cost price. He allows his customers a discount of 12% on the marked price. What is the profit percentage?

The difference between cost price and selling price is Rs 451. If loss percentage is 11%, then what is the selling price (in Rs)?

Simple interest on a sum for 12 months at the rate of 25% per annum is Rs 935.What is the value (in Rs) of sum?

The average height of 40 sticks is 154 cm. Some sticks of average height 160 cm are taken out. If the new average height is 150 cm, then how many sticks are remaining?