How many significant figures are there in product of 5 and 5.364?

Answer 1

Assuming 5 is not an exact value, the 5 has one significant figure and the 5.364 has four significant figures.

5.364 x 5 = 26.82

However, since 5 only has one significant figure, you would round the 26.82 to be 30 or 3 x 101

30 has one significant figure.