If the velocity of the stream is 2km/hr, then the total time taken by Ratan majhi to cover 21 kms in down stream and the same distance in upstream is 10 hours.
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Step-by-step explanation:
Enter first number: 15
Enter second number:20
Press 1. For SUM
Press 2. For PRODUCT
Press 3. For DIFFERENCE
Press 4. For QUOTIENT
Enter your choice (1-4): 2
The Product=300
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