CSS General Science and Ability MCQS Set 10

x = 3 is solution of the question 3x² + (k – 1) x + 9 = 0 then k has value

-13

-11

13

11

Find the length of the longer diagonal of a parallelogram if the sides are 6 inches and 8 inches and the smaller angle is 60^o.

11

7

12

8

A jar contains only red, white, and blue marbles. The number of red marbles is 4/5 the number of white ones, and the number of white ones is 3/4 the number of blue ones. If there are 470 marbles in all, how many of them are blue ?

220

150

200

120

135

Number Series Test

10

18

12

14

Find the greatest number of four digits which when divided by 10, 15, 21 and 28 leaves 4,9,15 and 22 as remainders, respectively.

9664

9666

9864

9654

If 0.4 : 1.4 :: 1.4 : x, the value of x is:

4.9

0.4

49

0.49

Find a positive number which when increased by 17 is equal to 60 times the reciprocal of the number.

20

17

10

3

1 only

2 or 3, but not both

2 only

1 or 3 but not both

1 and 2

An alloy contains copper and zinc in the ratio 7 : 3. If the alloy contains 10.5 kg zinc, then the quantity of copper in the alloy is:

17.35 kg

24.5 kg

28.2 kg

31.5 kg

Find the square root of 211600

460

440

None of these

480