Question
B overtakes A at(a) $16 \mathrm{~s}$(b) $12 \mathrm{~s}$(c) $8 \mathrm{~s}$(d) $4 \mathrm{~s}$
Step 1
We can denote the distance travelled by A as $S_A$ and the distance travelled by B as $S_B$. Show more…
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Key Concepts
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A overtakes $\mathrm{B}$ at (a) $10 \mathrm{~s}$ (b) $8 \mathrm{~s}$ (c) $12 \mathrm{~s}$ (d) $16 \mathrm{~s}$
(A) $8: 9$ (B) $25: 25$ (C) $64: 81$ (D) $16: 16$
Reasoning
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Choose the letter of the correct response. A. $\frac{16}{24}=\frac{8+8}{8+16}=\frac{8}{16}=\frac{1}{2}$ B. $\frac{16}{24}=\frac{4 \cdot 4}{4 \cdot 6}=\frac{4}{6}$ C. $\frac{16}{24}=\frac{8 \cdot 2}{8 \cdot 3}=\frac{2}{3}$
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