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Find the value of 2.2 + 4.08 + 3.125 + 6...

Find the value of 2.2 + 4.08 + 3.125 + 6.3755.

Text Solution

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Out of all the four numbers 2.2 has got the least number of decimal places-one.
Hence we should retain only two decimal places in the remaining numbers. Hence 4.08 remains as it is 2.125 is to be rounded off as 3.12 (as 2 before 5 is even) 6.3755 is to be rounded off as 6.38 (as 7 before 5 is odd). Now adding `2.2 + 4.08 + 3.12 + 6.38 = 15.78`. Finally we should have only one decimal place and hence 15.78 is to be rounded off as 15.8.
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