SSC CHSL 2021-04.08.2021-1 SSC Question Paper

SSC CHSL 2021 Question Papers

SSC CHSL 2021-04.08.2021-1 SSC Questions

51.
Section : Quantitative Aptitude
A solid metallic hemisphere of radius 6.3 cm is melted and recast into a right circular cylinder of radius 9 cm. What is the height (in cm, correct to one decimal place) of the cylinder?
A.
1.9
B.
2.7
C.
2.5
D.
2.1
😑 View Answer Rough Work
ANSWER :
D. 2.1
52.

If cos θ =\(\dfrac{4x}{1+4x^{2}}\) , then what is the value of sin θ ?

A.

\(\dfrac{1+4x^{2}}{1-4x^{2}}\)

B.

\(\dfrac{1+4x^{2}}{4x^{2}}\)

C.

\(\dfrac{1-4x^{2}}{1+4x^{2}}\)

D.

\(\dfrac{1-4x^{2}}{4x}\)

😑 View Answer Rough Work
ANSWER :

C. \(\dfrac{1-4x^{2}}{1+4x^{2}}\)

53.
In a triangle ABC, ∠BAC = 90° and AD is perpendicular to BC. If AD = 8.4 cm and BD = 4.8 cm, then the length of BC is:
A.
19.5 cm
B.
15 cm
C.
18 cm
D.
18.5 cm
😑 View Answer Rough Work
ANSWER :
A. 19.5 cm
54.
Tap P can fill a cistern in 6 hours and tap Q can empty the full cistern in 10 hours. If both taps P and Q are kept open simultaneously, then in how many hours will the empty cistern be completely full?
A.
15
B.
18
C.
16
D.
12
😑 View Answer Rough Work
ANSWER :
A. 15
55.
One dozen note books quoted at ₹125 are available at 20% discount. How many notebooks can be bought for ₹75?
A.
10
B.
6
C.
9
D.
8
😑 View Answer Rough Work
ANSWER :
C. 9
56.
A man invests ₹7,000 at 8% per annum simple interest for 2 years and ₹10,000 at compound interest at the same rate for the same period, compounded annually. What will be the total interest and the total amount (in ₹) respectively, on maturity?
A.
19,748 and 2,874
B.
2,748 and 19,784
C.
19,784 and 2,784
D.
2,784 and 19,784
😑 View Answer Rough Work
ANSWER :
D. 2,784 and 19,784
57.

If (sin A - cos A) = 0 , then what is the value of cot A?

A.

\(\dfrac{\pi}{6}\)

B.

0

C.

1

D.

\(\dfrac{\pi}{4}\)

😑 View Answer Rough Work
ANSWER :

C. 1

58.
A boat can travel with a speed of 19 km/h in still water. If the speed of the stream is 3 km/h, then what will be the total time (in hours) taken by the boat to go 88 km downstream and 24 km upstream?
A.
4.5
B.
5
C.
4
D.
5.5
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ANSWER :
D. 5.5
59.
A is 150% of B and B is 40% of C. If A + B + C = 20, then the value of 2B + 3C - 4A is equal to:
A.
16
B.
14
C.
20
D.
15
😑 View Answer Rough Work
ANSWER :
B. 14
60.

The following histogram represents the distribution of household expenditure (in ₹) of 200 manual workers in a city.
 
The ratio of the number of workers whose household expenditure is less than 2200 to the number of workers whose household expenditure is ₹300 and above is:

A.

3:5

B.

2:5

C.

4:5

D.

3:4

😑 View Answer Rough Work
ANSWER :

A. 3:5