# Quant Test for IBPS Clerk 2018 Prelim Exam Set – 12

Directions(1-5): Find the odd number of the following series.

1. 63,70,56,77,49,84,60
60
77
63
56
49
Option A
+7*1
-7*2
+7*3
-7*4
+7*5
-7*6
42 should be in place of 60.

2. 27,28,24,20,17,42
17
24
27
28
20
Option E
+1^2
-2^2
+3^2
-4^2
+5^2
33 should be in place of 20.

3. 76,38,45,57,114,285
76
45
57
38
114
Option B
*0.5
*1
*1.5
*2
*2.5
38 should be in place of 45.

4. 4,26,36,82,100,175
36
4
26
175
82
Option D
4*2-(3+1)
6*4-(5-3)
8*6-(7+5)
10*8-(9-7)
12*10-(11+9)
14*12-(13-11)
170 should be in place of 175.

5. 0,5,22,60,116,205
5
60
0
205
116
Option B
0^2 + 0 * 1^2
1^2 + 1 * 2^2
2^2 + 2 * 3^2
3^2 + 3 * 4^2
4^2 + 4 * 5^2
5^2 + 5 * 6^2
57 should be in place of 60.

6. The marked price of an article is 30% above the cost price of the article. If the shopkeeper sold the article at 15% discount then find the profit earned by the shopkeeper.
17.2%
25%
21%
10.5%
15%
Option D
Let CP of the articlebe x.
MP = 130% of x = 13x/10
SP = 85% of 13x/10 = 221x/200
Profit = 221x/200 – x = 21x/200
Profit% = 21x/200/x*100 = 10.5%

7. The average number of articles sold by a shopkeeper in a week was Rs. 64.The average number of articles sold from Monday to Thursday was 59 while the average number of articles sold from Thursday to Sunday was 62. Find the number of articles sold on Thursday.
36
20
25
30
27
Option A
Total number of articles sold in a week = 64*7
= 448
Articles sold from Monday to Sunday = 59*4
= 236
Articles sold from Thursday to Sunday = 62*4
= 248
Let the number of articles sold in Thursday be x. 236+248-x = 448
=> x = 36

8. A alone can do a work in 12 days but when A worked with B, the work gets completed in 60/7 days. B and C together do the work in 12 days. In how many days can A and C together do the work?
5.5 days
6.5 days
8.5 days
8 days
7.5 days
Option E
Le B alone complete the work be x days.
Let C alone complete the work be y days.
1/12+1/x = 7/60
=> x = 30
Now, 1/30+1/y = 1/12
=> y = 20 Work done by A and C in a day = 1/12+1/20
= 8/60
Required number of days = 60/8 = 7.5 days

9. The ratio of the length to the breadth of a rectangular floor is 7:5. The perimeter of the floor is 96 m. Find the cost of cleaning the floor at the rate of 19 per m^2.
Rs.12400
Rs.10000
Rs.15200
Rs.10640
Rs.10050
Option D
Let length and breadth be 7x and 5x meters resp.
2*(7x+5x) = 96
=> x = 4
Length = 7x = 28 m
Breadth = 5x = 20 m
Required cost = 19*28*20
= Rs.10640

10. There are 12 students in a coaching centre. One day, 3 students were absent in the coaching. Find the probability that out of those 3 students at least 2 are boys if total 7 girls study in the coaching.
7/12
9/11
5/11
3/10
4/11
Option E
Number of boys study in the coaching = 12 – 7
= 5
Required Probability = [7C1*5C2 + 5C3]/12C3
= 4/11