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Question

(9×103)+(9×102) in usual form is given by ___.


A
9000.09
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B
900.9
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C
9000.9
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D
900.09
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Solution

The correct option is A 9000.09
Note that 9×102=9×1100=0.09 .
Thus, the usual forms of the expressions 9×103 and 9×102 are given by 9000 and 0.09 respectively.
(9×103)+(9×102)=9000+0.09=9000.09.

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