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Quantitative Aptitude

NUMERICAL ABILITY COMBINED MCQs

Total Questions : 450 | Page 4 of 45 pages
Question 31. There are 360 students in a class out of which 35% are day scholars. How many day scholars are there in the class ?
  1.    128
  2.    122
  3.    124
  4.    126
  5.    None of these
 Discuss Question
Answer: Option D. -> 126


Number of day scholars in the class = (360 * 35)/100 = 126 


Question 32. Directions(43-45): What should come in place of the question mark (?) in the following number series ?

9   41   57   65   69   ?

  1.    73
  2.    75
  3.    72
  4.    76
  5.    None of these
 Discuss Question
Answer: Option E. -> None of these


The pattern  of the number series is:

9 + 32 (=25) = 41 

41 + 16 (=24) = 57 

57 + 8 (=23) = 65 

65 + 4 (=22) = 69 

69 + 2 (=21) = 71


Question 33. 430   422   395   331   ?
  1.    208
  2.    210
  3.    209
  4.    206
  5.    None of these
 Discuss Question
Answer: Option D. -> 206


The pattern of the number series is:430 - 23 = 430 - 8 = 422 422 - 33 = 422 - 27 = 395 395 - 43 = 395 - 64 = 331 331 - 53 = 331 - 125 = 206


Question 34. 7   10   16   25   37   ?
  1.    55
  2.    52
  3.    51
  4.    57
  5.    None of these
 Discuss Question
Answer: Option B. -> 52


The pattern of the number series is:

7 + 1 * 3 = 10 

10 + 2 * 3 = 16

16 + 3 * 3 = 25 

25 + 4 * 3 = 37 

37 + 5 * 3 = 52 



Question 35. In an examination it is required to get 55% of the aggregate marks to pass. A student got 340 and was declared failed by 5% marks. What are the maximum aggregate marks a student can get ?
  1.    650
  2.    660
  3.    680
  4.    Cannot be determinedd
  5.    None of these
 Discuss Question
Answer: Option C. -> 680


If total maximum  marks be x,

then 

50% of x = 340 

=> x * 1/2  = 340 

=> x = 680


Question 36. Directions(1-5): What should come in place of the question mark (?) in the following questions ?

436.56-625.43+312.55 = ?

  1.    126.68
  2.    125.86
  3.    134.68
  4.    128.86
  5.    None of these
 Discuss Question
Answer: Option E. -> None of these


? = 436.56-625.43+312.55

? = 123.68



Question 37. 4% of 250 * ?% of 140 = 84
  1.    9
  2.    7
  3.    6
  4.    10
  5.    None of these
 Discuss Question
Answer: Option C. -> 6


(250*4*140*?)/(100*100)  = 84

=>14 * ? = 84

=> ? = 84 / 14

=> ? = 6


Question 38. 1.5 * (52 /2.5) = ?
  1.    30.3
  2.    31.2
  3.    34.1
  4.    35.2
  5.    None of these
 Discuss Question
Answer: Option B. -> 31.2


? = 1.5 * 52 / 2.5 

? = 31.2


Question 39. 5 * ? = 2637/3
  1.    3395
  2.    167.8
  3.    5539
  4.    178.6
  5.    None of these
 Discuss Question
Answer: Option E. -> None of these


5 * ? = 2637 / 3

? = 2637 / (3 * 5) 

? = 175.8


Question 40. 4545/50/5 = ?
  1.    45.5
  2.    17.16
  3.    54.5
  4.    18.18
  5.    None of these
 Discuss Question
Answer: Option D. -> 18.18


? = 4545/(50*5) = 18.18


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