Question

The marks scored by 10 students of a class in a class test out of 20
marks are:
10, 11, 19, 18, 16, 15, 15, 18, 8, 10
Find the average marks.
Praveen took 5 tests and his average score so far is 80. If he gets 100
on the remaining 3 tests, find his new average.
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Answer 1

Answer:

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