Mathematics for IGCSE & O level - Proportion (Section 1 - No. 31)
A rectangular garden has a length of *L* meters and a width of *W* meters. If the area of the garden is fixed, which of the following is true?
L and W are directly proportional.
L and W are inversely proportional.
If L increases, W decreases.
If L decreases, W decreases.
Giải thích
Since Area = L * W, when the area is constant, an increase in L implies a decrease in W, and vice versa. Therefore L and W are inversely proportional.