Mathematics
Grade10
Easy
Question
David bought a toy train for $ 30. The toy only runs on $ 6 battery. Martin bought a toy bike for $ 26. The bike runs on $ 4 battery.
Find the number of batteries used if David and Martin spent the same amount of money on their toys.
- 2
- 3
- 8
- 5
The correct answer is: 2
To find the number of batteries used if David and Martin spent the same amount of money on their toys.
Let the number of batteries be b.
Number of batteries used by David ⇒ 30 + 6b
Number of batteries used by Martin ⇒ 26 + 4b
30 + 6b = 26 + 4b
4 = 2b
b = 2
Therefore, number of batteries used by David and Martin are 2.
