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प्रश्न
A class with p students has planned a picnic. Rs 50 per student is collected, out of which Rs 1800 is paid in advance for transport. How much money is left with them to spend on other items?
उत्तर
Number of students in the class = p
Total amount collected from p students = Rs. 50p
Amount paid in advance for transport = Rs. 1800
∴ Amount left with them = Rs. (50p – 1800)
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