1. Rs. 75.50
  2. Rs. 98.98
  3. Rs. 99.98
  4. None of these

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Answer: Option 3

Here we have to verify the given two conditions for the given options. Condition :1 As given, after finished his purchase he had the rupees as much as the paise when he went. Condition :2 After finishing purchase, he had Half as many rupees as he had paise when he went. We solve it through option checking method. Case :1 Now suppose the answer is option c Then he spent Rs. $$\frac{{99.98}}{2}$$ = Rs. 49.99 Condition :1 Here we have 99 paise so the rupees should be 99 when he went. He initially had 99 Rs. Hence condition 1 is satisfied. Condition :2 He had 98 paise to begin with. So the rupees he spent should be $$\frac{{98}}{2}$$ = Rs. 49 as per condition 2. It turns out that the rupees actually he spent was 49. Therefore, condition 2 is satisfied as well.

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