# Mixed Quantitative Aptitude Questions Set 146

Directions(1-5): What will be the value of question mark ‘?’ in the following questions.

1. (13)^54 * (13)^(-51) = (169)^2 * ?
14^-1
13^1
13^2
13^-1
10^-1
Option D
(13)^54 * (13)^(-51) = (169)^2 * ?
? = 13^(54-51)/13^4 = 13^-1

2. 74156 – ? – 321 – 20 + 520 = 69894
5460
4000
4530
4441
4550
Option D
74156 – ? – 321 – 20 + 520 = 69894
? = 74676 – 69894 – 341
= 4441

3. 6573 ÷ 21 × (0.2)^2 =?
12.52
13.31
15.50
11.22
10.05
Option A
6573 ÷ 21 × (0.2)^2 =?
? = 6573 * 0.04/21
= 12.52

4. 748 × ? × 9 = 861696
100
128
145
120
133
Option B
748 × ? × 9 = 861696
=> ? =861696/748 * 9
=> ? = 128

5. 2115 ÷ ? = 94 × 15
1.2
1.4
1.3
1.5
1.6
Option D
2115 ÷ ? = 94 × 15
? = 2115/(94 * 15)
=>? = 1.5

6. Ramesh has 20% savings with him from his monthly salary. If expenditure on clothing is 25% of overall expenditure and his total expenditure except clothing is 3600 then find his saving.
1300
1600
1400
1200
1500
Option D
Total expenditure = 80% of salary
Expenditure excluding clothing
= 80% – 25/100*80%
= 60% savings
Savings = 3600/60*20 = Rs.1200

7. A grocer purchased 2 kg. of rice at the rate of Rs 15 per kg. and 3 kg. of rice at the rate of Rs 13 per kg. At what price per kg. Should he sell the mixture to earn 33(1/3)% profit on the cost price.
Rs.16.25
Rs.14.40
Rs.13.35
Rs.12.12
Rs.18.40
Option E
CP of mixture = 15*2+13*3/5 = 69/5 Rs. per kg
SP = [69/5*400/3]/100 = Rs.18.40

8. An article is sold at a loss of 10%. Had it been sold for 9 more,there would have been a gain of 12.5% on it, then what is the cost price of the article?
45
33
40
42
48
Option C
(12.5 + 10) → 9
Acc. To question.
(12.5 + 10) → 9
=> 1 -> 9/22.5
=>100 -> 9000/225
Rs. 40

9. The income of A is 150% of the income of B and the income of C is 120% of the income of A. If the total income of A, B and C together is Rs 86,000, what is C’s income?
30000
43500
45660
36000
35670
Option D
Ratio of income of
A:B:C= 15:10:18
so, 15x+ 10x+ 18x = 86000
x =2000
C’s income= 18 * 2000 = 36000

10. An orange vendor makes a profit of 20% by selling oranges at a certain price. If he charges Rs 1.2 higher per orange he would gain 40%. Find the original price at which he sold an orange.
6.6
8.1
7.2
8.9
7.7
Option C
Increment in Profit is due to extra charges on Orange
i.e.
20% —– 1.2
100% —– 1.2 * 5
C.P. = Rs 6
S.P. = 6 * 1.2 = Rs 7.2