Maths Class 5 Computation Operations

Asked by AKSHAY GURU VARADHARAJAN · SRI CHAITANYA TECHNO SCHOOL, JAYANTI NAGAR.

A boy delivers 20 newspapers on even dates and 35 on odd dates. How many newspapers does he deliver in the month of December?

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Answer: A. 860

Total days in December: 31 days.
Number of odd dates: 1, 3, 5, 7, 9, 11, 13, 15, 17, 19, 21, 23, 25, 27, 29, 31 (Total = 16 days).
Number of even dates: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30 (Total = 15 days).
Newspapers on odd dates: 16 days x 35 newspapers = 560.
Newspapers on even dates: 15 days x 20 newspapers = 300.
Total newspapers: 560 + 300 = 860.

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