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Quantitative Aptitude

PROGRESSIONS MCQs

Total Questions : 42 | Page 2 of 5 pages
Question 11. The 9th term of an A.P. is 449 and 449th term is 9. The term which is equal to zero is
  1.    50th
  2.    502th
  3.    508th
  4.    None of these
 Discuss Question
Answer: Option D. -> None of these
Question 12. If Sn denote the sum of n terms of an A.P. with first term a and common difference d such that $$\frac{{{S_x}}}{{{S_{kx}}}}$$ is independent of x, then
  1.    d = a
  2.    d = 2a
  3.    a = 2d
  4.    d = -a
 Discuss Question
Answer: Option B. -> d = 2a
Question 13. The sum of first 20 odd natural numbers is
  1.    100
  2.    210
  3.    400
  4.    420
 Discuss Question
Answer: Option C. -> 400
Question 14. The sum of n terms of two A.P.’s are in the ratio 5n + 4 : 9n + 6. Then, the ratio of their 18th term is
  1.    $$\frac{{179}}{{321}}$$
  2.    $$\frac{{178}}{{321}}$$
  3.    $$\frac{{175}}{{321}}$$
  4.    $$\frac{{176}}{{321}}$$
 Discuss Question
Answer: Option A. -> $$\frac{{179}}{{321}}$$
Question 15. The next term of the A.P., $$\sqrt 7 ,$$ $$\sqrt {28} ,$$ $$\sqrt {63} ,$$ . . . . . .
  1.    $$\sqrt {70} ,$$
  2.    $$\sqrt {84} ,$$
  3.    $$\sqrt {97} ,$$
  4.    $$\sqrt {112} ,$$
 Discuss Question
Answer: Option D. -> $$\sqrt {112} ,$$
Question 16. How many 2-digit positive integers are divisible by 4 or 9?
  1.    32
  2.    22
  3.    30
  4.    34
 Discuss Question
Answer: Option C. -> 30
Question 17. Given A = 265 and B = (264 + 263 + 262 + ..... +20), which of the following is true?
  1.    B is 264 larger than A
  2.    A and B are equal
  3.    B is larger than A by 1
  4.    A is larger than B by 1
 Discuss Question
Answer: Option D. -> A is larger than B by 1
Question 18. What is the sum of all 3 digit numbers that leave a remainder of '2' when divided by 3?
  1.    897
  2.    1,64,850
  3.    1,64,749
  4.    1,49,700
 Discuss Question
Answer: Option B. -> 1,64,850
Question 19. The sum of the three numbers in A.P is 21 and the product of the first and third number of the sequence is 45. What are the three numbers?
  1.    5, 7 and 9
  2.    9, 7 and 5
  3.    3, 7 and 11
  4.    Both (A) and (B)
 Discuss Question
Answer: Option D. -> Both (A) and (B)
Question 20. If a rubber ball consistently bounces back $$\frac{{2}}{{3}}$$ of the height from which it is dropped, what fraction of its original height will the ball bounce after being dropped and bounced four times without being stopped?
  1.    $$\frac{{16}}{{81}}$$
  2.    $$\frac{{16}}{{27}}$$
  3.    $$\frac{{4}}{{9}}$$
  4.    $$\frac{{37}}{{81}}$$
 Discuss Question
Answer: Option A. -> $$\frac{{16}}{{81}}$$

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