Rani had Rs. 18.50. She bought one ice-cream for Rs. 11.75. How much money does she have now?
It is given in the question that.
Money spent by Rani on ice-cream = Rs. 11.75
Total money that Rani has = Rs. 18.50
Money left with Rani after buying an ice-cream = Rs. 18.50 – Rs. 11.75
Therefore, Rs. 6.75 left with Rani
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