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Q.

The sum of place value of digit 2 in the number 21.236 is


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a

20

b

20.2

c

22

d

2.2

answer is B.

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Detailed Solution

Concept: we’ll specify the base as 2 in the given number and then we’ll multiply it with its respective places value and add them.
Firstly, we’ll take 2 as our base value and then multiply it with the values at tenth place and another at one-tenth place, and after that we’ll add both the values.
=2×10+2×110
=20+0.2
=20.2
Hence, the sum of place value of digit 2 in the number 21.236 is 20.2
 
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