Instructions

For the following questions answer them individually

Question 11

Some part of Rs.9500 was lent at the rate of 15% per annum simple interest and the remaining part at the rate of 20% per annum simple interest. The total interest received after $$\frac{3}{2}$$ years is Rs.2565. What is the ratio of money lent at the rate of 15% and 20%?

Question 12

If 80% of total articles are sold at a loss of 15% and remaining articles are sold at a profit of 15%, then what will be the overall loss percentage?

Question 13

If three successive discounts of 10%, 15% and 30% are given, then what will be the net discount (in percentage)?

Question 14

Which of the following statement(s) is/are **TRUE **?

I. $$\sqrt{324}+\sqrt{3.24}+\sqrt{0.0324} = 19.98$$

II. $$\sqrt{129+\sqrt{121}+\sqrt{361}+\sqrt{100}}=13$$

Question 15

A is 40% more efficient than B. If B alone can complete a work in 42 days, then A alone can complete the same work in how many days?

Question 16

A train of length 180 metres crosses a tree in 15 seconds and crosses another train of the same length travelling in opposite direction in 20 seconds. What is the speed (in km/hr) of the second train?

Instructions

The line graph shows the profits of a certain company. Study the diagram and answer the following questions.