1. The pre-paid recharge of Airtel gives 21% less talktime than the same price pre-paid recharge of Vodafone. The post-paid talktime of Airtel is 12% more than its pre-paid recharge, having the same price. Further, the post-paid talktime of same price of Vodafone is 15% less than its pre-paid recharge. How much percent less / more talktime (approximately) can one get from the Airtel post-paid service compared to the post-paid service of Vodafone?
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By: anil on 05 May 2019 02.39 am
Let the value of pre-paid recharge of Vodafone be 100. Then the value of pre-paid recharge of Airtel is 79. Airtel gives 12% more to post-paid, so post-paid value is 79 x 1.12 = 88.48 Vodafone gives 15% less to post-paid than its pre-paid so its value is 85. Clearly Airtel gives more to its post-paid customers. Percentage = $$frac{3.48}{85}$$ x 100 = 4.09%
Therefore, option A is the right answer.
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Therefore, option A is the right answer.