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Quantitative Aptitude

NUMERICAL ABILITY COMBINED MCQs

Total Questions : 450 | Page 8 of 45 pages
Question 71. Directions(16-20): What approximate value should come in place of the question mark (?) in the following questions? [Note:You are not expected to calculate the exact value.]

16.003 * 27.998 - 209.010 = ? 

  1.    150
  2.    200
  3.    75
  4.    240
  5.    110
 Discuss Question
Answer: Option D. -> 240


? = 16 * 28 - 209 

  ≈ 448-209 ≈ 239


Question 72. 840.0003 ÷ 23.999  = ? 
  1.    47
  2.    8
  3.    35
  4.    18
  5.    23
 Discuss Question
Answer: Option C. -> 35


? = 840 ÷ 24 ≈ 35



Question 73. 11111 ÷ 111 ÷ 11 = ?
  1.    9
  2.    20
  3.    5
  4.    2
  5.    25
 Discuss Question
Answer: Option A. -> 9


? = 11111/(111*11)  â‰ˆ  11100/(111*11)

≈ 100/11 ≈ 9



Question 74. (6.5)2 = ?
  1.    58
  2.    25
  3.    43
  4.    35
  5.    50
 Discuss Question
Answer: Option C. -> 43


(6.5)2 ≈ 43 < 49 = 72


Question 75. 6885.009 - 419.999 - 94.989 = ?
  1.    6650
  2.    6830
  3.    6370
  4.    6200
  5.    6450
 Discuss Question
Answer: Option C. -> 6370


? = 6885 - 420 - 95 ≈ 6370


Question 76. Manhar sold an item for Rs.8,400 and incurred a loss of 25%. At what price should he have sold the item to have gained a profit of 40% ?
  1.    Rs. 15, 680
  2.    Rs. 16, 220
  3.    Rs. 14, 540
  4.    Cannot be determined
  5.    None of these
 Discuss Question
Answer: Option A. -> Rs. 15, 680


C.P of item = (100/75)*8400

=Rs.11200

S.P. for a gain of 40%

= (11200 * 140)/100 = Rs. 15680



Question 77. What would be the simple interest accrued in 4 years on a pricipal of Rs.16,500 at the rate of 16 p.c.p.a?
  1.    Rs. 11, 560
  2.    Rs. 10, 250
  3.    Rs. 12, 500
  4.    Rs. 9, 980
  5.    None of these
 Discuss Question
Answer: Option E. -> None of these


S.I = (Principal * Time * Rate)/100

= 16500*4*16/100

=Rs. 10560


Question 78. What will come in place of both the question mark (?) in the following question ?
(?)2.3/8 = 2/(?)1.7
  1.    8
  2.    1
  3.    4
  4.    16
  5.    2
 Discuss Question
Answer: Option E. -> 2


(?)2.3/8 = 2/(?)1.7
=>(?)2.3+1.7 = 8*2
=>(?)4 = 24
=> ? = 2


Question 79. A truck covers a distance of 360 kms in 8 hours. A car covers the same distance in 6 ratio between the speed of the truck and the car?
  1.    3:5
  2.    3:4
  3.    1:2
  4.    4:5
  5.    None of these
 Discuss Question
Answer: Option B. -> 3:4


Required Ratio

= 360/8 : 360/6

= 6 : 8

= 3 : 4


Question 80. In order to pass in an exam a student is required to get 975 marks out of the aggregate marks. Piya got 870 marks and was declared failed by 7 percent. What are the maximum aggregate marks a student can get in the examination?
  1.    1500
  2.    1000
  3.    1200
  4.    Cannot be determined
  5.    None of these
 Discuss Question
Answer: Option A. -> 1500


If the maximum aggregate marks be x, then, 

7% of x = 975 - 870

=> (x*7)/100 = 105

=> x = (105 * 100)/7 = 1500



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