 # Quant Test for IBPS PO Prelims Exam set – 1

Directions(1-5): Find the missing term ‘?’ of the following number series.

1. 19,32,49,68,?,120
88
70
85
91
79
Option D
+13,+17,+19,+23,+29
? = 91

2. 224,221,?,231,270,359
212
177
220
180
200
Option C
+1^3-2^2
+2^3-3^2
+3^3-4^2
+4^3-5^2
+5^3-6^2
? = 220

3. 621,540,491,466,457,?
420
400
384
456
390
Option D
-9^2,-7^2,-5^2,-3^2,-1^2
? = 456

4. 14,15,25,?,1125,11125
125
110
150
120
133
Option A
+10^0, +10^1, +10^2, +10^3, +10^4
? =125

5. 18,24,36,56,?,128
80
86
72
78
91
Option B
+3^2 -3
+4^2 -4
+5^2 -5
+6^2 -6
+7^2 -7
? = 86

6. Present age of A is 40% less than the present age of B. Age of A four years ago was half the present age of B. Find the present age of A and B.
39
40
32
47
28
Option C
Let the present age of B be x.
Present age of A = 0.6x
Now,
0.6x – 4 = x/2
=>x = 40
Present average age = (40+24)/2 = 32 years

7. Raj spent ¼ and 1/5 of his monthly salary on entertainment and transport resp. Out of the remaining amount, he spent 40% on food and rent together. He invests the remaining amount in a XYZ for one year and earned a profit of 20%. Find his monthly income if he received Rs.9504 from XYZ after one year.
14000
18000
24000
21000
20000
Option C
Let the monthly salary of Raj be Rs.x.
Amount invested in XYZ = x – 0.25x – 0.20x -0.22x = 9504/1.2
=> x= 24000

8. A circular well is dug in the ground up to 15 m depth. The soil which is taken out of the well is spread uniformly on a square floor having perimeter 48 m. Find the height up to which the soil is spread over the square floor if the diameter of the well is 16 m.
24 m
32 m
20 m
18 m
27m
Option C
Volume of the soil taken out = 3*8*8*15 = 2880 m^3
Side of the square floor = 48/4 = 12 m
Desired height =2880/(12*12) = 20 m

9. Ram bought a car for Rs.6x. He spent Rs.(x+500) for its repair and sold it to Shyam for Rs.(10x -252). Find the value of x, if in this transaction Ram had profit of 32%.
1000
1200
1800
1600
1300
Option B
CP of car for Ram = (7x +500)
SP of car =1.32*(7x+500) = 10x – 252
9.24x + 660 = 10x – 252
=>x = 1200

10. There are 10 red , 5 white and 5 black balls in an urn. Three balls are drawn at random from the urn. What is the probability that all three balls are white?
1/113
1/114
5/111
3/114
1/110
Option B
Required Probability = 5C3/20C3 = 10/1140 = 1/114