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GO Classes 2023 | IIITH Mock Test 1 | Question: 52

in Quantitative Aptitude edited by
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A man travels three-fifths of distance $A B$ at a speed of $3 a$, and the remaining at a speed of $2 b$. If he goes from $B$ to $A$ and back at a speed of $5 c$ in the same time, then:

  1. $1 / a+1 / b=1 / c$
  2. $a+b=c$
  3. $1 / a+1 / b=2 / c$
  4. None of these
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A
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Answer: C

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B to A and back, that’s why 2AB with speed 5c.
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