Mixed Quantitative Aptitude Questions Set 127

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

1. ? = 1( 1/ 4) + 1( 5/ 9) × 1( 5/ 8) ÷ 6( 1 /2)
1(21/38)
1(23/36)
1(22/39)
1(23/31)
1(17/30)
Option B
? = 1( 1/ 4) + 1( 5/ 9) × 1( 5/ 8) ÷ 6( 1 /2)
= 5/ 4 + 14/ 9 × 13/ 8 ÷ 13/2
= 5/ 4 + 14/9 × 13/8 × 2/13
= 5/4 + 7/18
= 45+14/36
= 59/36
= 1(23/36)

2. 50% 𝑜𝑓 250 + √? = 165
1700
1200
1600
1300
1500
Option C
50% 𝑜𝑓 250 + √? = 165
=> 50 100 𝑜𝑓 250 + √? = 165
⇒ 125 + √? = 165
⇒ √? = 40
? = (40)^2 = 1600

3. 140% 𝑜𝑓 56 + 56% 𝑜𝑓 140 = ?
180
157
166
145
185
Option B
140% 𝑜𝑓 56 + 56% 𝑜𝑓 140 = ?
=>140 100 𝑜𝑓 56 + 56 100 𝑜𝑓 140
= 78.4 + 78.4 = 156.8 == 157

4. 20% 𝑜𝑓 [{(220% 𝑜𝑓 40) − 10}]% 𝑜𝑓 500 = ?
70
66
57
78
82
Option D
20% 𝑜𝑓 [{(220% 𝑜𝑓 40) − 10}]% 𝑜𝑓 500 = ?
=> 1/5 × [{88 − 10}]% 𝑜𝑓 500 = ?
=> 1/5 × 78/100 × 500 = ?
=> ? = 78

5. 999.09 + 99.90 + 9.99 + 9 + 0.99 =?
1331
1231
1010
1119
1001
Option D
999.09 + 99.90 + 9.99 + 9 + 0.99 = 1118.97 == 1119

6. Directions(6-10): Table shows the mobile phones sold on different days by different sellers. Read the table carefully and answer the questions.

7. Find the difference of mobile phones sold by A and C together on Monday to the mobile phones sold by D and E on Wednesday ?
10
30
50
20
60
Option C
Required difference = (40 + 80) – (12 + 58) = 120 – 70 = 50

8. The mobiles sold by A on Thursday are of two types i.e. Windows phone and Android phone in ratio 3 : 4. Find the number of Windows phones sold by A on Thursday?
16
10
12
18
14
Option C
Windows phones sold by A on Thursday = 3/7 × 28 =12

9. What is the average of mobile phone sold by B on Wednesday, E on Sunday and D on Monday ?
28
34
20
30
37
Option B
Average = [27 + 15 + 60]/3 = 102/3 = 34

10. Mobile phones sold by A and D together on Wednesday is what percent of mobile phone sold by E on Sunday ?
600%
500%
700%
400%
800%
Option D
Required percentage = (48 + 12)/15 × 100 = 60/15 × 100 = 400%

11. Find the ratio of mobile phone sold by B on Tuesday and Saturday together to the mobile phone sold by C on Thursday and Sunday together?
15 ∶ 8
13 ∶ 5
18 ∶ 7
19 ∶ 6
17 ∶ 11
Option D
Required ratio = [90 + 27]/[13 + 47] = 190:60 = 19 ∶ 6