Class VIII Math

MCQ for Direct and Inverse Proportions

MCQ for Direct and Inverse Proportions

(i) x – y = constant

(ii) x + y = constant

(iii) x × y = constant

(iv)

(i) x – y = constant

(ii) x + y = constant

(iii) xy = constant

(iv)

(i) 1 – n

(ii)

(iii) n – 1

(iv) none of these

(i) n days

(ii) 1 – n days

(iii) n – 1 days

(iv) none of these.

(i) directly

(ii) inversely

(iii) sometimes directly and sometimes inversely

(iv) none of these.

(i) inverse variation

(ii) direct variation

(ii) direct variation

(iv) none of the above.

(i) Number of sheets of some kind are incresed when their total weight its increased

(ii) More quentity of petrol is required to travel more distance with a fixed speed

(iii) More fees would be collected if number of students increased in a class

(iv) Time taken will be less if number of workers are increased to complete the same work.

(i) If the length of radius is increased the circumference will be increased

(ii) If number of students is a hostel are increased then the fixed food provision will last for less days

(iii) For fixed duration, more the periods, lesser will be the duration of one period

(iv) In case of a cylindrical vessel, lesser the diameter more is the level of water in it.

The value of x for y = 10 is

(i) 10

(ii) 40

(iii) 15

(iv) 20