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Q.

What is the value of 400 + 0.04 − 0.0000004  ?


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a

2.1993

b

2.3455

c

3.0199

d

3.9800 

answer is A.

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Detailed Solution

The given expression is 400 + 0.04 − 0.0000004  .
Simplify the expression,
400 + 0.04 − 0.0000004 =20+0.2+0.000632 ⇒2.199368   Hence, the value of the expression 400 + 0.04 − 0.0000004   is 2.1993.
Therefore, option 1 is correct.
 
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