Delhi SI CPO Nov 23 Shift-1

The price of diesel increased by 16%. A person wants to increase his expenditure on diesel by 10% only. By what percentage, correct to one decimal place, should he reduce his consumption?

The given bar graph shows the number of students of two schools over a period of six years.

In the bar graph, what is the ratio of the average of the total students from school A to the average of the total students from school B

The perimeter of a square is the same as the perimeter of a rectangle. The perimeter of the square is 40 m. If its breadth is two-thirds of its length, then the area (in $$m^2$$) of the rectangle is:

The given histogram shows the height of the students.

The difference between the number of students whose height is between 150-155 cm and the number of students whose height lies between 175-180 cm is

The given bar graph shows the number of students of two schools over a period of six years.

In the bar graph, what is the ratio of the students taken for the years 2009, 2011, 2013 together from school to the students taken for the years 2008, 2012, 2013 together from school B?

The given histogram shows the height of the students.

What is the percentage of students whose height is in the class interval 160-170?
(correct to the nearest integer)

If each side of a rectangle is decreased by 11%, then its area will decrease by:

The value of $$8 - 3 \div 6 $$ of $$ 2 + (4 \div 4 of \frac{1}{4}) \div 8 + (4 \times 8 \div \frac{1}{4} )\times\frac{1}{8}$$

If $$4 (\cosec^2 57^\circ - \tan^2 33^\circ ) - \cos 90^\circ - y \tan^2 66^\circ \tan^2 24^\circ = \frac{y}{2}$$, the value of y is:

The sides of a triangle are 24 cm, 26 cm and 10 cm. At each of its vertices, circles of radius 4.2 cm are drawn. What is the area $$(cm^{2})$$ of the triangle, excluding the portion covered by the sectors of the circles? $$\left(\pi = \frac{22}{7}\right)$$