Mixed Quantitative Aptitude Questions Set 153

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

1. (25)^(2+?) = (625) ÷ 125 × 3125 ÷ 25
   1
   4
   2
   3
   0
   Option E
   (25)^(2+?) = (625) ÷ 125 × 3125 ÷ 25
   =>(25)^2+? = 625/125 × 3125/25
   = 5 × 125 = 625
   ⇒ (25)^2
   =>2 +? = 2
   =>? = 0
   
   
    



2. ? × 1.3 × 6.5 = 1.17 × 24.7
   4.41
   2.12
   5.13
   3.42
   4.11
   Option D
   ? × 1.3 × 6.5 = 1.17 × 24.7
   =>? = [117 × 247]/[13 × 65 × 10]
   = 3.42
   
   
    



3. 8 (1/3) × 2(2/5) +? = 14(1/6) × 3( 3/17)
   25
   20
   13
   17
   18
   Option A
   8 (1/3) × 2(2/5) +? = 14(1/6) × 3( 3/17)
   =>25/ 3 × 12/5 +? = 85/6 × 54/17
   =>5 × 4 + ? =9 × 5
   => ? = 45 – 20
   => ? = 25
   
   
    



4. (?)² ÷ 12.5 = 6.25 × 3.125 ÷ 1.5625
   14.4
   12.5
   13.3
   16.8
   10.1
   Option B
   (?)² ÷ 12.5 = 6.25 × 3.125 ÷ 1.5625
   (?)² ÷ 12.5 = 6.25 × 3.125 ÷ 1.5625
   => (? )^2 = 6.25 × 3.125 × 12.5 1.5625
   =>(? )^2 = 625 × 3125 × 125 15625 × 100
   => (? )^2 = 125 × 125 100
   => (? )^2 = 12.5 × 12.5
   =>? = 12.5
   
   
    



5. 55% of 320 + 30% of 1080 = 20 × ?
   20
   16
   25
   17
   14
   Option C
   55% of 320 + 30% of 1080 = 20 × ?
   =>55/100 × 320 + 30/100 × 1080 = 20 ×?
   =>176 + 324 = 20 × ?
   =>? = 500/20 = 25
   
   
    
Directions(6-10): Find the missing term '?' of the following series.


6. 2, 7, 28, 63, ?
   110
   116
   104
   126
   122
   Option D
   2, 7, 28, 63, ?
   1^3 + 1, 2^3 − 1, 3^3 + 1, 4^3 − 1, 5^3 + 1
   125 + 1 = 126
   
   
    



7. 1, 2, 4.5, 11, 30, ?
   88
   80
   78
   75
   93
   Option E
   × 1 + 1,× 1.5 + 1.5,× 2 + 2,× 2.5 + 2.5,× 3 + 3
   => 30 × 3 + 3 = 93
   
   
    



8. 2, 4, 16, ?, 132, 282
   44
   47
   52
   40
   56
   Option C
   2 + (1^2 + 1^3 ), 4 + (2^2 + 2^3 ), 16 + (3^2 + 3^3 ), 52 + (4^2 + 4^3 )
   => 16 + (3^2 + 3^3 ) = 52
   
   
    



9. 6, 7, 24, ?, 882, 7947
   115
   125
   102
   98
   90
   Option B
   6 × 1 + 1, 7 × 3 + 3, 24 × 5 + 5, 125 × 7 + 7, 882 × 9 + 9
   => 24 × 5 + 5 = 125
   
   
    



10. 7, 16, -2, 25, ?, 34
    −12
    −11
    −3
    −7
    −10
    Option B
    +9, −18, +27, −36, +45
    => 25 − 36 = −11