SSC CHSL 2021-12.08.2021-2 SSC Question Paper

SSC CHSL 2021 Question Papers

SSC CHSL 2021-12.08.2021-2 SSC Questions

61.

If \(a=\frac{\sqrt{5}+2}{\sqrt{5}-2}\) and \(b=\frac{\sqrt{5}-2}{\sqrt{5}+2}\) , then the value of 2a2 + 2b2 − 5ab is equal to:

A.

693

B.

649

C.

635

D.

639

😑 View Answer Rough Work
ANSWER :

D. 639

62.

The value of a3 + b3 + c3 − 3abc , when a = 125, b = 127 and c = 129, is:

A.

4725

B.

4572

C.

4752

D.

3752

😑 View Answer Rough Work
ANSWER :

B. 4572

63.
The marked price of a table is ₹3,000, which is 25% above the cost price. It is sold at a discount of 20% on the marked price. What is the profit or loss per cent?
A.
Loss, 5%
B.
Profit, 10%
C.
Profit, 15%
D.
Noprofit, no loss
😑 View Answer Rough Work
ANSWER :
D. Noprofit, no loss
64.
△ABC is drawn in a circle such that AC = BC and ∠BAC = 65°. From points B and C two tangents are drawn which intersect at point P. Whatis the measure of ∠BPC?
A.
52.5°
B.
50°
C.
55°
D.
32.5°
😑 View Answer Rough Work
ANSWER :
B. 50°
65.

If cosec A = 10, then what is the value of 20 sin A + \(-9\sqrt{11}\) sec A? Given that A is an acute angle.

A.

23

B.

34

C.

32

D.

30

😑 View Answer Rough Work
ANSWER :

C. 32

66.
The daily wages of P, Q and are in the proportion 5 : 7 : 8. If Q earns ₹560 per day, then what are the daily wages(in ₹) of R and P, respectively?
A.
400 and 640
B.
350 and 590
C.
640 and 400
D.
590 and 350
😑 View Answer Rough Work
ANSWER :
C. 640 and 400
67.

The area of an equilateral triangle is \(10.24\sqrt{3}\,\text{m}^2\). Its perimeter (in m) is:

A.

3.2

B.

9.6

C.

6.4

D.

19.2

😑 View Answer Rough Work
ANSWER :

D. 19.2

68.

The square of the diagonal of a cube is 2175 cm2 . What is the total surface area (in cm2) of the cube?

A.

4305

B.

4272

C.

4530

D.

4350

😑 View Answer Rough Work
ANSWER :

D. 4350

69.
A shopkeeper bought 95 dozen oranges at ₹4.50 each. 7 dozen oranges were rotten and so were discarded. He sold the remaining oranges at ₹78 per dozen. What is his profit or loss per cent (to the nearest integer)?
A.
Profit, 45%
B.
Profit, 34%
C.
Loss, 34%
D.
Loss, 45%
😑 View Answer Rough Work
ANSWER :
B. Profit, 34%
70.
The average age of 7 members of a family is 35 years. If the youngest members are twins and they are 15 years old, then what was the average age (in years) of the family members at the time of the birth of the twins?
A.
28
B.
27
C.
30
D.
25
😑 View Answer Rough Work
ANSWER :
A. 28