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Quantitative Aptitude

NUMERICAL ABILITY COMBINED MCQs

Total Questions : 450 | Page 39 of 45 pages
Question 381. The compound interest accrued in 2 years on a principal of Rs. 16.250 is Rs. 5616. What is the rate of interest p.c.p.a ?
  1.    22
  2.    16
  3.    18
  4.    Cannot be determined
  5.    None of these
 Discuss Question
Answer: Option B. -> 16


16% per annum


Question 382. The average height of 21 girls was recorded as 148 cms. If the teacher's height was added, the average increased by one. What was the teacher's height?
  1.    156 cms
  2.    168 cms
  3.    170 cms
  4.    162 cms
  5.    None of these
 Discuss Question
Answer: Option C. -> 170 cms


Height of the teacher = 148 + 22 = 170 cms


Question 383. What would be the area of a circle whose diameter is 35 cms ?
  1.    962.5 sq.cm.
  2.    875.5 sq.cm
  3.    981.5 sq.cm
  4.    886.5 sq.cm
  5.    None of these
 Discuss Question
Answer: Option A. -> 962.5 sq.cm.


Area of circle= Pi r2

=22/7 * 35/2 * 35/2
= 962.5 sq.cm


Question 384. Out of the fractions 3/5, 7/9, 4/7, 2/3 and 5/8 what is the difference between the largest and smallest fractions ?
  1.    8/63
  2.    19/63
  3.    11/63
  4.    17/63
  5.    None of these
 Discuss Question
Answer: Option E. -> None of these


3/5 = 0.6;   7/9 = 0.78;

4/7 = 0.57; 2/3 = 0.67;

5/8 = 0.625


Required difference = 7/9 - 4/7 = (49-36)/63  = 13/63


Question 385. Mehul sold an item for Rs.5625 and incurred a loss of 25%. At what price should he have sold the item to have gained a profit of 25% ?
  1.    Rs. 9375
  2.    Rs. 10500
  3.    Rs. 8250
  4.    Cannot be determined
  5.    None of these
 Discuss Question
Answer: Option A. -> Rs. 9375


C.P of article = 5625 * 100/75

= Rs. 7500

S.P for gain of 25%

= 7500*125/100 = Rs. 9375


Question 386. Directions(16-20): What approximate value should come inn place of the question mark(?) in the following questions ? (Note: You are not expected to calculate the exact value.)

9125 ÷ 90 ÷ 9 = ?

  1.    27
  2.    3
  3.    7
  4.    21
  5.    11
 Discuss Question
Answer: Option E. -> 11


? = 9125/(90*9)  â‰ˆ 11


Question 387. 11.003 * 10.998 + 111.010 = ?
  1.    255
  2.    195
  3.    230
  4.    270
  5.    210
 Discuss Question
Answer: Option C. -> 230


? ≈ 11 * 11 + 111

≈ 121 + 111 ≈ 232 ≈ 230



Question 388. 6666.009 - 585.999 -79.986 = ?
  1.    5000
  2.    5500
  3.    6500
  4.    4500
  5.    6000
 Discuss Question
Answer: Option E. -> 6000


? ≈ 6666 - 586 - 80 ≈ 6000


Question 389. (14.5)2 = ?
  1.    235
  2.    190
  3.    250
  4.    185
  5.    210
 Discuss Question
Answer: Option E. -> 210


? = (14.5)3 ≈ 210 < 225 = (15)2


Question 390. 765.0003 ÷ 44.999 = ?
  1.    17
  2.    11
  3.    6
  4.    22
  5.    30
 Discuss Question
Answer: Option A. -> 17


? ≈ 765 ÷ 45 ≈ 17


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