SSC-CPO 2020 Quantitative Aptitude

Practice subject-wise previous year questions

Question 251
Arithmetic

The value of \(\frac{{{{\sin }^2}{}52^\circ + 2 + {{\sin }^2}{{ }}38^\circ }}{{4{}{{\cos }^2}43^\circ - 5 + 4{{\cos }^2}{{}}47^\circ }}\)  is:

A
\(\frac{1}{3}\)
B
-3
C
3
D
\(-\frac{1}{3}\)
Question 252
Arithmetic

Chord AB of a circle is produced to a point P, and C is a point on the circle such that PC is a tangent to the circle. If PC = 12 cm, and BP = 10 cm, then the length of AB (in cm) is:

A
4.4
B
6
C
5
D
5.4
Question 253
Arithmetic

On the marked price of Rs. 1,250 of an article, three successive discounts of 5%, 15% and 20% are offered. What will be the selling price (in Rs.) after all discounts?

A
807.50
B
975.75
C
1,000
D
950.25
Question 254
Arithmetic

The given bar graph shows the sales of cars from six branches of a dealer B1, B2, B3, B4, B5, B6, during two consecutive years 2018 and 2019. Blue colour corresponds to the year 2018 and white shaded line colour corresponds to the year 2019. The average sales of cars (from all branches) for the year 2018 is:

A
85
B
80
C
90
D
78
Question 255
Arithmetic

In the following pie chart shows percentage of a country on different heads. The total expenditure is Rs. 1,680 (in billions). Study the chart and answer the question. The central angle of the sector representing expenditure on Subsidy is:

A
75.6°
B
108.3°
C
90°
D
54.9°
Question 256
Arithmetic

The following pie chart shows percentage expenditure of a country on different heads. The total expenditure is Rs. 1,680 (in billions). Study the chart and answer the question. The total amount of expenditure for education and Health (in billions Rs.) is:

A
84
B
168
C
126
D
186
Question 257
Arithmetic

The value of \(\frac{{4.35 \times 4.35 \times 4.35 + 3.25 \times 3.25 \times 3.25}}{{43.5 \times 43.5 + 32.5 \times 32.5 - 43.5 \times 32.5}}\) is:

A
0.76
B
0.0076
C
7.6
D
0.076
Question 258
Arithmetic

If 49% of X = Y, then Y% of 50 is:

A
24.5% of Y
B
24.5% of X
C
40% of Y
D
50% of X
Question 259
Arithmetic

Study the given histogram that shows the marks obtained by students in an examination and answer the question that follows. If the total marks obtained by students be represented as a pie chart, then the central angle corresponding to marks 250 or more but less than 300 is: (correct to the nearest degree)

A
88°
B
68°
C
128°
D
188°
Question 260
Arithmetic

The perimeter of a right triangle is 60 cm and its hypotenuse is 26 cm. What is the area (in cm 2 ) of the triangle?

A
96 
B
60 
C
120 
D
90 
Question 261
Arithmetic

If a 2 + b 2 + c 2 + 84 = 4(a - 2b + 4c), then \(\sqrt {ab - bc + ca} \) is equal to:

A
\(4\sqrt {10} \)
B
\(5\sqrt {10} \)
C
\(2\sqrt {10} \)
D
\(\sqrt {10} \)
Question 262
Arithmetic

If a 3 + b 3 = 217 and a + b = 7, then the value of ab is:

A
-1
B
6
C
-6
D
7
Question 263
Arithmetic

In ΔABC, D is the median from A to BC. AB = 6 cm, AC = 8 cm, and BC = 10 cm. The length of median AD (in cm) is:

A
3
B
4.5
C
5
D
4
Question 264
Arithmetic

The value of \(\frac{2}{3} \div \frac{3}{{10}}of\frac{4}{9} - \frac{4}{5} \times 1\frac{1}{9} \div \frac{8}{{15}} - \frac{3}{4} + \frac{3}{4} \div \frac{1}{2}\) is:

A
\(\frac{17}{{9}}\)
B
\(\frac{25}{{6}}\)
C
\(\frac{14}{{3}}\)
D
\(\frac{49}{{12}}\)
Question 265
Arithmetic

The following pie chart shows the percentage expenditure of a country on different heads. The total expenditure is Rs. 1,680 (in billions). Study the chart and answer the question. The amount of expenditure on Defence is what percentage more than the expenditure on Education?

A
150%
B
125%
C
50%
D
100%
Question 266
Arithmetic

The HCF of two numbers is 29, and the other two factors of their LCM are 15 and 13. The larger of the two number is:

A
377
B
464
C
406
D
435
Question 267
Arithmetic

A can complete some work in 35 days and B can complete the same work in 15 days. They worked together for 8 days, then B left the work. In how many days will A alone complete 60% of the remaining work?

A
5
B
8
C
10
D
15
Question 268
Arithmetic

The base of a triangle is equal to the perimeter of a square whose diagonal is \(6\sqrt 2\) cm, and its height is equal to the side of a square whose area is 144 cm 2 . The area of the triangle (in cm 2 ) is:

A
144
B
216
C
288
D
72
Question 269
Arithmetic

A ladder is resting against a wall. The angle between the foot of the ladder and wall is 60°, and the foot of the ladder is 3.6 m away from the wall. The length of the ladder (in m) is:

A
5.4
B
14.4
C
3.6
D
7.2
Question 270
Arithmetic

If x + y + z = 13, x 2 + y 2 + z 2 = 133 and x 3 + y 3 + z 3 = 847, then the value of \(\sqrt[3]{{xyz}}\) is:

A
-9
B
-6
C
7
D
8
Question 271
Arithmetic

PQRS is a cyclic quadrilateral. If ∠P is 4 times ∠R, and ∠S is 3 times ∠Q, then the average of ∠Q and ∠R is:

A
45.7°
B
81°
C
90°
D
40.5°
Question 272
Arithmetic

The simple interest on a sum of money at 10% per annum for 2 years is Rs. 8,100. Compounded annually, what would be the compound interest (in Rs.) on the same sum for the same period at the same rate of interest?

A
8,100
B
8,505
C
8,715
D
9,000
Question 273
Arithmetic

A boy increases his speed to \(\frac{9}{5}\) times of his original speed. By doing this, he reaches his school 40 minutes before the usual time. How much time (in minutes) does he take usually?

A
120
B
30
C
45
D
90
Question 274
Arithmetic

If the selling price of 50 articles is equal to the cost price of 42 articles, the what is the approximate loss or profit percentage?

A
16% loss
B
20% profit
C
10% loss
D
8% profit
Question 275
Arithmetic

The present ages of A and B are in the ratio 3 : 4. Twelve years ago, their ages were in the ratio 2 : 3. The sum of the present ages of A and B (in years) is:

A
60
B
84
C
48
D
72