Cost of one radio Set = Rs. 1200
Cost of 40 radio set = 1200 × 40= Rs. 48,000
Now, total money with merchant = Rs. 78,592
Money spent by her = Rs. 48,000
Money left with her= Rs. (78,592 – 48,000) = Rs.30,592
Therefore, Rs. 30,592 will remain with her after the purchase.
Nice
NICE
It is a very nice app