Question

Substract 2.5x104 from 3.9x105 with due regard to significant figure.​

Answer 1

Answer:

We have

=>3.9×10⁵−2.5×10⁴

=>3.9×10⁵−0.25×10⁵

=>3.65×10⁵

But our answer should be rounded off upto two significant digits.

So, the ans is 3.6×10⁵

Explanation:

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