Question
Question: The mass of a box is 2.3 kg. Two marbles of masses 2.15 g and 12.39 g are added to it. The total mas...
The mass of a box is 2.3 kg. Two marbles of masses 2.15 g and 12.39 g are added to it. The total mass of the box to the correct number of significant figures is
A
2.340 kg
B
2.3145 kg.
C
2.3 kg
D
2.31 kg
Answer
2.3 kg
Explanation
Solution
Total mass =2.3+0.00215+0.01239=2.31 kg
Total mass in appropriate significant figures be 2.3 kg.