Question

If 3.8 10% is added to 4.2 x 10 giving due regard to
significant figures, then the result will be
(a) 4.58 x 10-5
(b) 4.6 x 10-5
(c) 4.5 x 10-5
(d) 4.7 x 10-5​

Answer 1

Answer:

a)40.8

b)41

c)40

d)42

Hope this will help you