# Mixed Quantitative Aptitude Questions Set 120

1. A sum was put at simple interest at a certain rate for 3 years. Had it been put at 1% higher rate, it would have fetched Rs. 5100 more. Find the sum.
Rs.12000
Rs.15000
Rs.18000
Rs.17000
Rs.19000
Option D
Simple interest for 1 year = 5100/3 = Rs. 1700
1% of sum = 17000
sum = 1700×100/1 = Rs.17000

2. The retail price of a water geyser is Rs. 1265. If the manufacturer gains 10%, the wholesale dealer gains 15% and the retailer gains 25%, find the cost of the product .
Rs. 400
Rs. 500
Rs. 600
Rs. 800
Rs. 900
Option D
Cost price = 100/110 × 100/115 × 100/125 × 1265
= Rs. 800

3. A pipe can fill a cistern in 6 hrs. Due to a leak in its bottom, it is filled in 7 hrs. When the cistern is full, in how much time will it be emptied by the leak?
33 hrs.
42 hrs.
50 hrs.
48 hrs.
40 hrs.
Option B
In one hour, 1/6 – 1/7 = 1/42 of the cistern is empty
The whole cistern will be emptied in 42 hrs.

4. A train is 216 m long. It crosses a platform in 19 seconds with speed 21 m/s. If some 21 m long boxes are added in train and it crosses same platform, then it takes 26 seconds to cross the platform at same speed. How many boxes were added to the train?
8
5
6
4
7
Option E
Length of platform = 21 × 19 – 216 = 183 m
Let n boxes are added 216 + 183 + 21n = 21 × 26
=> 21n = 147
=> n = 7

5. A and B started business with Rs 600 and Rs 500 respectively. After 4 months, C replaces B with X% of B’s capital. After 1 year C’s share out of the total profit 24000 is 5600. Find the value of x.
70%
50%
90%
40%
80%
Option A
(A’s profit) : (B’s profit) : (c’s profit)
= 600 *12 : 500* 4 : 5x *8
= 180 : 50 : x
C’s profit = x/( x 230) × 24000 = 5600
=> x = 70%

6. Directions(6-10): Find the missing term ‘?’ of the following questions.

7. 3, 8, 18, 38, 78, ?
158
140
139
151
147
Option A
+5,+10,+20,+40,+80
? = 158

8. 6, 3, 3, 6, 24, ?
177
169
192
188
157
Option C
*0.5
*1
*2
*4
*8
? = 192

9. 142, 133, 115, 88, ?
37
48
40
59
52
Option E
-9,-18,-27,-36
? = 52

10. 2, 10, 30, 68, 130, ?
189
215
210
222
198
Option D
Difference of difference
? = 222

11. 5, 8, 12, 18, 27, ?
36
40
34
31
38
Option B
Difference of difference
? = 40