If temperature t is directly proportional to heat h, and when t = 20oC, h…

Correct Answer: Option A

Explanation

t ∝ h, t = 20, h
t = ? h = 60
t = kh where k is constant
20 = 50k
k = (frac{20}{50})
k = (frac{2}{5})
when h = 60, t = ?
t = (frac{2}{5}) × 60
t = 24^oC

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