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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 ?
A
$60$
km/hr.
B
$30$
km/hr.
C
$20$
km/hr.
D
$40$
km/hr.
Medium
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Solution
Verified by Toppr
Correct option is
A
$60$
km/hr.
$540$
km journey takes
$7$
hours
$30$
minutes.
Two -Third of the journey
$=$
$32 ×540=360$
km
Time taken
$=80360 =4$
hours
$30$
minutes.
Remaining time
$=7−4=3$
hours
Remaining Distance
$=540−360=180$
km
Speed
$=3180 =60$
km/hr
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