8th Class Mathematics Direct and Inverse Proportions Question Bank Direct and Inverse Proportions

  • question_answer 21) State ?T? for true and ?F? for false.
    (i) If x and y are in direct proportion, then (x-1) and (y-1) are also in direct proportion.
    (ii) If x and y are in inverse proportion then (x+2) and (y+2) are also in inverse proportion.
    (iii) Two quantities x and y are said to vary directly with each other if \[\frac{x}{y}=k\], where k is a positive constant.
    (iv) When distance is kept fixed, then speed and time vary inversely with each other.

    A)

    (i) (ii) (iii) (iv)
    T F F T
                   

    B)       

    (i) (ii) (iii) (iv)
    T T F F
                   

    C)       

    (i) (ii) (iii) (iv)
    F F T T
                   

    D)       

    (i) (ii) (iii) (iv)
    T F T F

    Correct Answer: C

    Solution :

                              Not Available

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