Question

Rob wanted to know the mass of his luggage before he got on an airplane. He

put the luggage on a balance and added two 10 kg weights and one 3 kg
weight so that the balance was even. What is the mass of his luggage?

A) 23 kg
B) 14 kg
C) 12 kg
D) 20 kg

Answer 1

23

Step-by-step explanation:

10 x 2 = 20

20 + 3

= 23kg

Answer 2

A

Step-by-step explanation:

1. 20+3
2. 2*10=20
3. 3*1=3 so the mass is 23 kg