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

Ratio of the income of A and B is 8 : 5, while expenditures is in the ratio 5 : 3. If they have saved Rs. 12,000 and Rs. 10,000 monthly respectively, then the difference in their monthly incomes is: 

A mobile plan costs Rs. 32 for 6 minutes. What is the approximate cost, in rupees, for 4 minutes?

The length of a rectangle is 6 cm more than its width and its perimeter is 100 cm. If the area of this rectangle is closest to the area of a circle, then what is the circumference of that circle?

From a point P on a level ground, the angle of elevation of the top tower is 30°. If the tower is 100 meter high, the distance of point P from the foot of the tower is:

A and B can do a piece of work in 40 days and 30 days respectively. They worked together for 12 days after that B was replaced by C. the work finish in next 8 days. In how many days C can alone finish the work?

3x² = 36 then what is the value of x?

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?