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

    

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


6. 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

    

7. 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

    

8. 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

    

9. 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%

    

10. 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