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A sports car going at an average speed o...

A sports car going at an average speed of 108 km/h takes 15 minutes to complete a lap on a racing track. How much speed (in km/h) should be increased to complete the lap in 9 minutes?
108 km/h की औसत गति से चलने वाली एक स्पोर्ट्स कार को रेसिंग ट्रैक पर एक घेरे को पूरा करने में 15 मिनट लगते हैं। 9 मिनट में घेरे को पूरा करने के लिए कितनी गति (km/h) बढ़ाई जानी चाहिए?

A

180

B

108

C

72

D

100

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