Test Academy | Subtract 2.5 x 10⁴ from 3.9 x 10⁵ with due regard to significant figures. 4.7 x 10⁵, 6.7 x 10⁵, 2.7 x 10⁵, 3.7 x 10⁵

Question

Subtract 2.5 x 10⁴ from 3.9 x 10⁵ with due regard to significant figures.

Options :