SSC CHSL 19th April 2021 Shift-3

The given line graph shows the production (in tonnes) and the sales (in tonnes) of a company.

What is the difference (in tonnes) in the production in 2015 and 2017 taken together and the sales in 2018 and 2019 taken together?

If $$x^8 - 2599 x^4 + 1 = 0$$, then the positive value of $$x - \frac{1}{x}$$ will be:

Solve the following equation.
$$\theta : 2\sqrt{3} \sin^2 \theta + \cos \theta - \sqrt{3} = 0$$ where $$\theta$$ is an acute angle

In a right angled triangle ABC, if $$ABC = 90^\circ$$, AB = 6 cm, BC = 8 cm, and BD is perpendicular to AC, then AD : DC is:

The average of 5 numbers is 26.4. The first numberis one-fifth of the sum of the remaining 4 numbers. Whatis the first number?

If $$\sec \left(90^\circ - \frac{3 \theta}{2}\right) = \sqrt{2}, 0^\circ < \theta < 90^\circ$$, then the value of $$2 \sin \theta + 4 \cos 2 \theta$$ will be:

If the diameter of the base of a cone is 18 cm and its curved surface area is $$424\frac{2}{7} cm^2$$, then its height will be:
(Take $$\pi = \frac{22}{7}$$)

If a + b + c = 4, ab + bc + ca = -14 and abc = -18, then the value of $$\sqrt{4a^3 + 4b^3 + 4c^3 - 36}$$ will be:

The difference between a numberandits three-fifth is 274. What is 20% of the number?

The given bar-graph shows the number of boys and girls in classes A, B, C and D in a school, the number of teachers allotted to each class and the number of students promoted to the next class.

Which class has the highest percentage of failed students?