A reduction of 20% in the price of sugar enables a housewife to purchase 6 kg. more for Rs. 240. What is the original price per kg. of sugar?

Price of sugar rises by 20%. By how much percent should the consumption of sugar be reduced so that the expenditure does not change?

Directions: Read the following table and answer the questions below it:

In which year was the total disbursement of loans of banks A and B exactly equal to the total disbursement of loans of banks C and D ? 

Sunil, Karim and Mohan are invested a certain amount in the ratio 1: 2: 3 and the ratio of investment at the end of year is 3 : 8: 18. Find the ratio of time for which they invested ?

Find the area of the circle formed in an equilateral triangle of side 42 cm. Using (π=22/7)

Direction: A shopkeeper has some kg. rice of same price. He sold 150 kg. rice at 25 Rs. per kg. and earned a profit of 25%, another 180 kg. rice is sold at a profit of 20% and rest are sold at a loss of 10%. If the shopkeeper earns Rs. 1230 profit on all the rice that he has sold then answers the following question:

If the shopkeeper sells his all rice at a profit of 20%, find the new profit. 

$$ ({2+\sqrt{5}})$$ and $$ ({2-\sqrt{5}})$$ is a quadratic equation with roots.

Comprehension: Read the following chart and answer the following questions.

What is the difference between the day that had maximum deaths to the day that had minimum deaths?