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Multiplication of Monomials

D is proporti...

Question

D is proportional to square of S.
D = 900 when S = 20
Calculate the value of D when S = 25

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Solution

D is proportional to $S^{2}$

D = k. $S^{2}$

900 = k. 400

k= $\frac{9}{4}$

D = $\frac{9}{4}$ x 625

D = 1406.25

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\begin{matrix} Column - I & Column - II (A) Value of Q_{1} (in cal) & (P) 800 (B) Value of Q_{2} (in cal) & (Q) 1000 (C) Value of Q_{3} (in cal) & (R) 5400 (D) Value of Q_{4} (in cal) & (S) 212 (T) 900 \end{matrix}

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