List of practice Questions

Fly ash is a waste product from which of the following:

French influence in architecture is found at

From a point O, two persons A and B started their journey on XY plane. A went 7 km. along north and stopped. B went 5 km west and then 5 km south and stopped. What is the shortest distance between A and B?

Given below are two statements followed by two conclusions. Assuming these statements to be true, decide which one logically follows.
Statements:
I. All film stars are playback singers.
II. All film directors are film stars.
Conclusions:
I. All film directors are playback singers.
II. Some film stars are film directors.

Green Architecture is promoted these days because:

Gypsum is a:

How many bricks of dimension 20 cm × 10 cm × 10 cm are required to build a wall 12 m long, 3 m high and 30 cm wide, if 10% of the wall is comprised of mortar?

How many total number of triangles are there in the figure given below?

If \( a, b, c \) are non-zero, then the number of solutions of \[\frac{2x^2}{a^2} - \frac{y^2}{b^2} - \frac{z^2}{c^2} = 0,\]\[-\frac{x^2}{a^2} + \frac{2y^2}{b^2} - \frac{z^2}{c^2} = 0\]is:

If \( A = \begin{bmatrix} -\frac{1}{\sqrt{2}} & \frac{1}{\sqrt{2}} & 0 \\ -\frac{1}{\sqrt{2}} & -\frac{1}{\sqrt{2}} & 0 \\ 0 & 0 & 1 \end{bmatrix} \), then \( A^{-1} \) is:

If \(^nc_7=^nc_4\), then the value of n is

In a group of four children,Som is younger to Riaz.Shiv is elder to Ansu.Ansu is youngest in the group.Which of the following statements is/are required to find the eldest child in the group?
Statements:
1. Shiv is younger to Riaz.
2. Shiv is elder to Som

In a project, the share of material and labour costing is 3:2. In the labour component, the electrician gets 5%. What is the total project cost if an electrician gets ₹25,000/-?

Length of a solid diagonal of a cube is 6 cm. The volume of the cube is

Let E and F be any two sets. Which of the following statements is NOT correct?

Let P={1,2,3} Q={2, 3, 4}. Then the number of elements in P×Q is

Let P={1, 3, 5, 7, 9} and R={(1, 3), (3, 5), (1, 5), (9, 7), (7, 5), (9, 5)}. Then R

\( m \) men and \( w \) women are to be seated in a row so that all women sit together. The number of ways in which they can be seated is:

Nurse Merry has worked more night shifts in a row than Nurse Sujata, who has worked five. Nurse Ruma has worked fifteen night shifts in a row, more than Nurses Merry and Sujata combined. Nurse Priti has worked eight night shifts in a row, less than Nurse Merry. How many night shifts in a row has Nurse Merry worked?

The angle which an inclined plane makes with the horizontal when a body placed on it is about to slide down is known as angle of

The linear scale of a map is 1 cm = 2 m. The drawing dimensions of an on-site rectangular plot measuring 25 m × 40 m will be

The monthly rate of sales for the first 11 months of the year of a certain salesman was ₹12,000. But due to his illness during the last month, the average sales for the whole year came down to ₹11,375. The value of the sale during the last month was

The number of solutions of the pair of equations \( 2 \sin^2 \theta - \cos 2\theta = 0 \) and \( 2 \cos^2 \theta - 3 \sin \theta = 0 \) in the interval \([0, 2\pi]\) is:

The probability that a man will live for 10 more years is 1/4 and the probability that his wife will live for 10 more years is 1/3. The probability that neither the husband nor the wife will be alive after 10 years is

The system of linear equations -2x+y+2=a, x-2y+z=b, x+y-2z=c have infinitely many solutions if