# Mixed Quantitative Aptitude Questions Set 141

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

1. 525,524,516,489,?,300
320
425
325
400
300
Option B
-1^3,-2^3,-3^3,-4^3,-5^3
? = 425

2. 24,36,72,180,?,1890
500
525
515
540
536
Option D
*1.5,*2,*2.5,*3,*3.5
? = 540

3. 32,37,27,42,?,47
18
15
20
10
22
Option E
+5,-10,+15,-20,+25
?= 22

4. 12,10,17,47,?,909
172
180
198
177
183
Option E
*1-2
*2-3
*3-4
*4-5
*5-6
? = 183

5. 24,43,81,138,?,309
200
214
232
222
220
Option B
+19*1
+19*2
+19*3
+19*4
+19*5
? = 214

6. A boy covers 5 km north from his home, and then turns right to cover some distance at the speed of 4.8km/hr. in 2.5hours to reach his school. Find the shortest distance between his home and school.
15
20
16
13
10
Option D
Distance = 4.8*2.5 = 12 km
Shortest distance= (12^2 + 5^2)^1/2 = 13 km

7. Find the rate at which Rs.11500 yields Rs.5060 compound interest after 2 years when compounded annually.
22
18
25
20
26
Option D
Let the rate be r% p.a.
5060 = 11500*{(1+r/100)^2 -1}
=> 16560/11500 = (1+r/100)^2
=>r = 20%

8. The profit percent on an article â€˜Xâ€™ worth Rs.1500 is same as the loss percent on an article â€˜Yâ€™ worth Rs.2100. If the selling price of the article â€˜Yâ€™ is Rs.1680. Find the selling price of the article â€˜Xâ€™.
1000
1200
1800
1400
1600
Option C
Loss percent on article Y = (2100- 1680)/2100
= 20%
Profit on X = 20%
SP of article X = 1.2*1500 = Rs.1800

9. A and B monthly incomes were Rs. 42000 and Rs.30000 resp. If Aâ€™s expenditure was 2/3rd of his income and Bâ€™s expenditure was 3/4th of his income. Find the sum of the monthly savings of A and B?
23000
25025
24470
21500
22600
Option D
Aâ€™s savings = 1/3*42000 = Rs.14000
Bâ€™s savings = Â¾*30000 = Rs.7500
Sum = Rs.21500

10. The average height of all the males and all the females of a family is 172 cm and 180 cm resp. If the family has only married couples with no unmarried member. Find the average height of the family.
190
145
160
176
157
Option D
Let the number of male members be x.
Required average = (172x+180x)/2x = 176 cm

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