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Question
If x varies inversely as y, then
| x | – | 60 |
| y | 2 | 10 |
Solution
If x varies inversely as y, then
| x | 300 | 60 |
| y | 2 | 10 |
Explanation:
If x varies inversely as y, then
xy = k (constant) ...(i)
If x = 60 and y = 10
∴ xy = 60 × 10 = 600
⇒ k = 600
When y = 2, then from equation (i), we have
x × 2 = k
⇒ 2x = 600
⇒ x = 300
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