Question

A grain of sand has a mass of 2.6 × 10–3 gram. A grain of salt has a mass of 6.5 × 10–2 gram. How many times greater is the mass of the grain of salt than the mass of the grain of sand?

A
2.5
B
3.9
C
25
D
39

Answer 1

C

Explanation:

2.6 x10^-3= .0026

6.5 x10^-2=.065

.065/.0026=25