Question

In a direct proportion, 2 quantites x & y vary in with each other such that
a) x/y remains constant
b) y/x remains constant
c) xy remains constant
d) x+y remains constant

Answer 1

Answer:

When x and y vary directly, it means that their ratio remains constant.

Thus, x/y will always be constant for a given pair of quantities which vary directly.

Example, when x = 1, y = 2

Ratio = 1:2

Thus, if x = 2, then y = 2 × 2 = 4

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Answer: (a) x/y remains constant

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Answer 2

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