The percentage of the energy in the petrol burnt in the engine which is actually utilized in propelling the car is as little as
इंजन में जले हुए पेट्रोल में ऊर्जा का प्रतिशत जो वास्तव में कार को चलाने में उपयोग किया जाता है, वह है
25%
60%
35%
15%
25%
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