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7th Grade > Mathematics

DIRECT AND INVERSE PROPORTIONS MCQs

Total Questions : 21 | Page 1 of 3 pages
Question 1. Y is directly proportional to x², x = 2 and y = 20, value of x when y = 1.25 is
  1.    0.3
  2.    0.6
  3.    0.5
  4.    0.8
 Discuss Question
Answer: Option C. -> 0.5
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 2. Q is directly proportional to √p Q = 21 when p = 9, the value of Q when p = 81 is
  1.    63
  2.    64
  3.    56
  4.    67
 Discuss Question
Answer: Option A. -> 63
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 3. Y is inversely proportional to √x y = 6 when x = 4, the value of x when y = 4 is
  1.    12
  2.    8
  3.    9
  4.    11
 Discuss Question
Answer: Option C. -> 9
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 4. Y = 3/x² y and x are
  1.    directly related
  2.    inversely related
  3.    not related
  4.    non of above
 Discuss Question
Answer: Option B. -> inversely related
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 5. 7 identical pipes fill 3 identical tanks 45mins, 5 pipes fill one of these tanks in
  1.    20min
  2.    21min
  3.    15min
  4.    10min
 Discuss Question
Answer: Option B. -> 21min
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 6. If y = x, then both are
  1.    inversely related to each other
  2.    directly related to each other
  3.    not related
  4.    none of above
 Discuss Question
Answer: Option A. -> inversely related to each other
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 7. Q = 7p², q and p are
  1.    directly related
  2.    inversely related
  3.    no related
  4.    None of above
 Discuss Question
Answer: Option A. -> directly related
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 8. P is inversely proportional to Q, P = 9 when Q = 2, value of P when Q = 3 is
  1.    7
  2.    8
  3.    2
  4.    6
 Discuss Question
Answer: Option D. -> 6
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 9. If 30 : 50 = 6 : x then value of x is
  1.    20
  2.    30
  3.    10
  4.    50
 Discuss Question
Answer: Option C. -> 10
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 10. If x and y are directly related, the graph between them is
  1.    Straight line
  2.    curved line
  3.    tangent line
  4.    None of above
 Discuss Question
Answer: Option A. -> Straight line
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

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