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Mathematics for IGCSE & O level - Proportion (Section 3 - No. 12)

If y varies directly with x, and y = 6 when x = 2, find y when x = 5.
1.2
15
2.4
10

Açıklama

y = kx; 6 = 2k; k = 3. Therefore, y = 3*5 = 15.

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