A journey of 540 km is completed in 7 hours 30 minutes- If two-third of the journey is completed 80 km-hr- what speed is the remaining journey completed -60 km-hr-30 km-hr-20 km-hr-40 km-hr-

Question

Toppr Admin · Accepted Answer

540 km journey takes 7 hours 30 minutes-Two -Third of the journey -xA0-23-xD7-540-360 kmTime taken -36080-4 hours 30 minutes-Remaining time -7-x2212-4-3 hoursRemaining Distance -540-x2212-360-180 kmSpeed -1803-60 km-hr

A journey of $540$ km is completed in $7$ hours $30$ minutes. If two-third of the journey is completed at $80$ km/hr, at what speed is the remaining journey completed ?
$60$ km/hr.
$30$ km/hr.
$20$ km/hr.
$40$ km/hr.

$540$ km journey takes $7$ hours $30$ minutes.

Two -Third of the journey $=$ $\frac{2}{3} \times 540 = 360$ km

Time taken $= \frac{360}{80} = 4$ hours $30$ minutes.

Remaining time $= 7 - 4 = 3$ hours

Remaining Distance $= 540 - 360 = 180$ km

Speed $= \frac{180}{3} = 60$ km/hr

A journey of 540 km is completed in 7 hours 30 minutes. If two-third of the journey is completed at 80 km/hr, at what speed is the remaining journey completed ?60 km/hr.30 km/hr.20 km/hr.40 km/hr.

540 km journey takes 7 hours 30 minutes.Two -Third of the journey = 23×540=360 kmTime taken =36080=4 hours 30 minutes.Remaining time =7−4=3 hoursRemaining Distance =540−360=180 kmSpeed =1803=60 km/hr

A journey of $540$ km is completed in $7$ hours $30$ minutes. If two-third of the journey is completed at $80$ km/hr, at what speed is the remaining journey completed ?
$60$ km/hr.
$30$ km/hr.
$20$ km/hr.
$40$ km/hr.

$540$ km journey takes $7$ hours $30$ minutes.

Two -Third of the journey $=$ $\frac{2}{3} \times 540 = 360$ km

Time taken $= \frac{360}{80} = 4$ hours $30$ minutes.

Remaining time $= 7 - 4 = 3$ hours

Remaining Distance $= 540 - 360 = 180$ km

Speed $= \frac{180}{3} = 60$ km/hr