An aeroplane covers a certain distance at a speed of 240 kmph in 5 hours. What speed it must attain to cover the same distance in $1 \frac{2}{3}$ hours?

300 km/hr

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360 km/hr

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720 km/hr

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180 km/hr

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Solution

The correct option is C
720 km/hr

Distance = 240 $\times$ 5 = 1200 km

Speed = $\frac{D i s t a n c e}{T i m e}$

Required speed = $\frac{1200}{\frac{5}{3}}$ km/hr = $\frac{3600}{5}$ km/hr = 720 km/hr

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An aeroplane covers a certain distance at a speed of 240 kmph in 5 hours. What speed it must attain to cover the same distance in 123 hours?

The correct option is C 720 km/hr Distance = 240 × 5 = 1200 km Speed = DistanceTime Required speed = 120053 km/hr = 36005 km/hr = 720 km/hr

An aeroplane covers a certain distance at a speed of 240 kmph in 5 hours. What speed it must attain to cover the same distance in $1 \frac{2}{3}$ hours?

The correct option is C
720 km/hr

Distance = 240 $\times$ 5 = 1200 km

Speed = $\frac{D i s t a n c e}{T i m e}$

Required speed = $\frac{1200}{\frac{5}{3}}$ km/hr = $\frac{3600}{5}$ km/hr = 720 km/hr