Correct Answer: Option A
Let speed of boat in still water = a km/hr
Then, Speed of boat in Upstream = a - 2 km/hr
Speed of boat in downstream = a+2 km/hr
Then we have
\(\frac{{32}}{{a + 2}} + \frac{{32}}{{a - 2}} = 12\)
⇒ (32 × 2a) / (a2 – 4) = 12
16a = 3a2 - 12
On solving, we get a = 6
Hence, speed of racing boat in still water is 6 km/hr
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