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Quantitative Aptitude

NUMERICAL ABILITY COMBINED MCQs

Total Questions : 450 | Page 5 of 45 pages
Question 41. Directions(6-10): What should come in place of the question mark (?) in the following questions ?

(6*6*6*6*6*6)4 * (6*6*6*6)5 / (6*6)7 = (36)7
  1.    15
  2.    21
  3.    18
  4.    27
  5.    None of these
 Discuss Question
Answer: Option A. -> 15


(363)4 * (362)5 / (36)7 = (36)?
=> 3612 * 3610 / 367 = 36?
=> 3612+10-7 = 36?
=> 3615 = 36?
=> ? = 15
[(am)n = amn
am * an = am+n
am / an = am-n]


Question 42. 8.2 * 4.4 * 5.5  = ?
  1.    174.88
  2.    185.33
  3.    186.88
  4.    198.44
  5.    None of these
 Discuss Question
Answer: Option D. -> 198.44


? = 8.2 * 4.4 * 5.5 = 198.44 


Question 43. 45 / 1.5 - 0.5 = ?
  1.    27.5
  2.    23.5
  3.    29.5
  4.    35
  5.    None of these
 Discuss Question
Answer: Option C. -> 29.5


? = 45/1.5 -0.5 = 30 - 0.5 = 29.5


Question 44. 17% of 250 + ? = 108
  1.    65.5
  2.    74.5
  3.    66.5
  4.    58.5
  5.    None of these
 Discuss Question
Answer: Option A. -> 65.5


(250 * 17)/100 + ? = 108

=> 42.5 + ? = 108

=> ? = 108 - 42.5 = 65.5


Question 45. 12.8% of 715 = ? 
  1.    93.25
  2.    91.15
  3.    95.21
  4.    97.21
  5.    None of these
 Discuss Question
Answer: Option E. -> None of these


? = (715*12.8)/100 = 91.52


Question 46. 9525/80/8 = ? 
  1.    23
  2.    15
  3.    7
  4.    19
  5.    10
 Discuss Question
Answer: Option B. -> 15


? = 9525/(80*8) ≈ 15


Question 47. Directions(16-20): What approximate value should come in place of the question mark (?) in the following question ? [Note: you are not expected to calculate the exact value.]

15.003 * 14.9998 + 125.010 = ? 

  1.    400
  2.    320
  3.    290
  4.    270
  5.    350
 Discuss Question
Answer: Option E. -> 350


? ≈ 15 * 15 + 125 

? ≈ 225 + 125

? ≈ 350


Question 48. (13.5)2 = ?
  1.    170
  2.    200
  3.    150
  4.    215
  5.    180
 Discuss Question
Answer: Option E. -> 180


? = (13.5)2 ≈ 180 < 196 = 142


Question 49. 805.0003 / 34.999 = ? 
  1.    23
  2.    9
  3.    14
  4.    18
  5.    27
 Discuss Question
Answer: Option A. -> 23


? ≈ 805/35 ≈ 23


Question 50. 7777.009 - 596.999 - 89.989 = ?
  1.    6080
  2.    6800
  3.    7090
  4.    8200
  5.    7500
 Discuss Question
Answer: Option C. -> 7090


? ≈ 7777 - 597 - 90 ≈ 7090


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