SSC-CPO 2020 Quantitative Aptitude
Practice subject-wise previous year questions
Question 51
Arithmetic
Three successive discounts of 12%, 13% and 11% are equivalent to an approximate single discount of:
A
32%B
42%C
40%D
35%Question 52
Arithmetic
The value of \(1 - 3 \div 6\;of\;2 + \left( {4 \div 4\;of\frac{1}{4}} \right) \div 8 + \left( {4 \times 8 \div \frac{1}{4}} \right) \times \frac{1}{8}\) is:
A
69/4B
-69/4C
7/4D
-7/4Question 53
Arithmetic
A circle is inscribed in a triangle ABC. It touches side AB, BC, and AC at points R, P, and Q, respectively. If AQ = 2.6 cm, PC = 2.7 cm and BR = 3 cm, then the perimeter (in cm) of the triangle ABC is:
A
33.2B
16.6C
28D
30Question 54
Arithmetic
The sides of a triangle are 24 cm, 26 cm and 10 cm. At each of its vertex, circles of radius 4.2 cm are drawn. What is the area (in cm 2 ) of the portion covered by the three sectors of the circle ? (π = 22/7)
A
27.72B
92.28C
105.86D
120Question 55
Arithmetic
A, B and C started a business investing amounts of Rs. 13,750, Rs. 16,250 and Rs. 18,750 respectively. lf B's share in the profit earned by them is Rs. 5,200. what is the difference in the profit (in Rs.) earned by A and C ?
A
1,200B
1,600C
1,800D
1,500Question 56
Arithmetic
The following histogram shows the weights of students of class X in a school on a particular day. Total number of students enrolled in class X = 200 The number of students weighing less than 55 kg is what percentage less than the number of students weighing 55 kg to 65 kg ?
A
10%B
8%C
5%D
7%Question 57
Arithmetic
A ladder leaning against a wall makes an angle θ with the horizontal ground such that tan θ = 12/5. If the height of the top of the ladder from the wall is 24 m., then what is the distance (in m) of the foot of the ladder from the walI ?
A
19.5B
10C
18D
7.5Question 58
Arithmetic
The given bar graph shows the number of student of two schools over a period of six years. In the bar graph, what is the ratio of the average of total students from school B to the average of total student from school A ?
A
429 : 370B
370 : 429C
429 : 799D
799 : 429Question 59
Arithmetic
The average of twelve numbers is 39. The average of the last five numbers is 35, and that of the first four numbers is 40. The fifth number is 6 less than the sixth number and 5 more than the seventh number. The average of the sixth and seventh numbers is:
A
47.5B
50C
44.5D
39Question 60
Arithmetic
A takes 2 hours 30 minutes more than B to walk 40 km. If A doubles his speed, then he can make it in 1 hour less than B. What is the average time taken by A and B to walk a 40 km distance ?
A
5 hours 15 minutesB
7 hours 15 minutesC
6 hoursD
5 hours 45 minutesQuestion 61
Arithmetic
A train x running at 74 km/h crosses another train y running at 52 km/h in the opposite direction in 12 seconds. If the length of y is two-thirds that of x , then what is the length of y (in m) ?
A
210B
200C
168D
252Question 62
Arithmetic
If A's salary is 30% more than B's salary, then by what percentage is B's salary less than that of A ? (correct to one decimal place)
A
17.5%B
19.7%C
23.1%D
25%Question 63
Arithmetic
The radius of the base of a cylinder of a cylinder is 14 cm and its volume is 6160 cm 3 . The curved surface area (in cm 2 ) is: (take π = 22/7)
A
880B
778C
940D
660Question 64
Arithmetic
If decreasing 110 by x% gives the same result as increasing 50 by x%, then x% of 650 is what percentage (correct to the nearest integer) more than (x - 10)% of 780 ?
A
12%B
17%C
14%D
18%Question 65
Arithmetic
The given graph shows the number of students of two schools over a period of six years. In the bar graph, in which year is the absolute difference of the students from schools A to B taken together is maximum ?
A
2013B
2010C
2011D
2012Question 66
Arithmetic
In ΔABC, BD ⊥ AC at D, E is a point on BC such that ∠BEA = x°. If ∠EAC = 62° and ∠ EBD = 60°, then the value of x is:
A
78°B
76°C
92°D
68°Question 67
Arithmetic
What is the sum of the digits of the least number which when divided by 15, 18 and 36 leaves the same remainder 9 in each case and is divisible by 11 ?
A
17B
15C
18D
16Question 68
Arithmetic
If 4(cosec 2 57 - tan 2 33) - cos 90 + y × tan 2 66 × tan 2 24 = y/2, then the value of y is:
A
8B
-4C
4D
-8Question 69
Arithmetic
Seven years ago, the ratio of the ages of A and B was 4 : 5. Eight years hence, the ratio of the ages of A and B will be 9 : 10. What is the difference between their present ages in years ?
A
2B
6C
3D
4Question 70
Arithmetic
If x + y + z = 19, x 2 + y 2 + z 2 = 133 and xz = y 2 , x > z > 0, what is the value of (x - z) ?
A
-2B
-5C
5D
0Question 71
Arithmetic
If 4 - 2sin 2 θ - 5cosθ = 0, 0°< θ < 90°, then the value of cosθ - tanθ is:
A
\(\frac{{1 + 2\surd 3}}{2}\)B
\(\frac{{2 - \surd 3}}{2}\)C
\(\frac{{2 + \surd 3}}{2}\)D
\(\frac{{1 - 2\surd 3}}{2}\)Question 72
Arithmetic
If a nine-digit number 785x3678y is divisible by 72, then the value of (x + y) is:
A
5B
12C
10D
20Question 73
Arithmetic
The average weight of A, B and C is 65 kg. If the average weight of C and B is 61.5 kg, and the average weight of A and C is 68.5 kg, then the weight of C (in kg) is:
A
65B
68C
67D
60Question 74
Arithmetic
The value of \(\left[\frac{{40 + \frac{3}{4}\;of\;32}}{{37 + \frac{3}{4}\;of\;\left( {34 - 6} \right)}}\right]\) is:
A
\(2 \frac{3}{29}\)B
\(-1 \frac{3}{29}\)C
\(1 \frac{9}{29}\)D
\(1 \frac{3}{29}\)Question 75
Arithmetic
The given pie charts represent the popularity of ice-cream flavours in the years 2005 and 2015. If a percentage point shift results in annual additional sales of Rs. 5,000. how much (in Rs.) did the combined annual strawberry and butterscotch sales increase from 2005 to 2015 ?
A
37,000B
74,000C
65,000D
10,000