NTPC CBT-2 QUANT QUIZ

Question 1:

Which is missing in the average of numbers $9,99,999, \ldots \ldots, 999999999 ?$

0

1

2

3

Question 2:

Direction : What should come in place of question mark (?) in the following question?

$\frac{1}{2}$ of $\frac{3}{5}$ of $\frac{4}{9}$ of $5820=?$

766

777

776

767

Question 3:

$\tan ^{2} \theta-\sin ^{2} \theta=?$

$0$

$\tan ^{2} \theta \sin ^{2} \theta$

$1$

$\tan ^{2} \theta \cos ^{2} \theta$

Question 4:

If $\mathrm{x}, \mathrm{y}, \mathrm{z}$ are in A.P. then value of $(\mathrm{x}-\mathrm{z})^{2}:\left(\mathrm{y}^{2}-\mathrm{x} z\right)$ equals

$4: 3$

$1: 2$

$3: 4$

$4: 1$

Question 5:

Rs.4,000 becomes Rs.5200 at $x \%$ p.a. in 6 years. If rate of interest $(x+1) \%$ what will be amount?

Rs. 7500

Rs. 6000

Rs. 5440

Rs. 5560

Question 6:

$20$% more workers join the work in a factory and time taken is decreased by $30$%. If their efficiency is increased by $40$% then find the percentage change in the total work.

20

17.6

15.4

25

Question 7:

Area on closed by the $x$ axis, $x=2$ and the curve $y = log x$ is.

$\log 4$

$2 \log 2+1$

$2 \log 2-1$

$\log 2-1$

Question 8:

Meera buys some goods for Rs. 300 . If the overhead expenses be 15% of the cost price , at what price should it be sold to earn 20% ?

Rs. 450

Rs. 400

Rs. 414

Rs. 448

Question 9:

Mohan wants to buy a trapezium shaped field. Its side along the river is parallel to and twice the side along the road. If the area of this field is $10500 \mathrm{~m}^{2}$ and the perpendicular distance between the two parallel sides is $100 \mathrm{~m}$, find the length of the side along the river?

240 m

230 m

140 m

160 m

Question 10:

A family consists of two parents and three children. If the average age of the parents is 36 years and that of the children is 10 years. Find the average age (in years) of the family.

20

$20.4$

$20.8$

21