**A merchant had Rs 78,592 with her. She placed an order for purchasing 40 radio sets at Rs 1200 each. How much money will remain with her after the purchase?**

To find out how much money the merchant will have remaining after purchasing 40 radio sets at Rs 1,200 each, you can use the following calculation:

Total cost of 40 radio sets = Cost per radio set × Number of radio sets Total cost = Rs 1,200 × 40

Total cost = Rs 48,000

Now, subtract the total cost of the radio sets from the merchant's initial amount:

Money remaining = Initial amount - Total cost Money remaining = Rs 78,592 - Rs 48,000

Money remaining = Rs 30,592

So, the merchant will have Rs 30,592 remaining after purchasing 40 radio sets.

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