8 th class math textbook is printed in 128 paper sheets. The thickness of each paper is
20mm. Find the total thickness of the textbook and express in scientific form. (2m)
5A6 is a number divisible by 2 then find all possible values of A?
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A can be any digit 0 , 1,2,3,4,5,6,7,8,9 .
This is because the divisibility of 2 is tested by the last no.only
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