Answer:
The candle be 4 inches tall after 6 hours.
Explanation:
After burning for 2 hours, the length of a candle = 10 inches
After 3 hours the length of the candle = 8.5 inches
Therefore, the candle burn in 1 hour = 10 - 8.5 = 1.5 inches
In the question it is given that after 3 hours it is 8.5 inches tall and we have to calculate the length of the candle after 6 hours which means 3 more hours candle burn.
In 1 hour candle burn for = 1.5 inches
in 3 hours candle will burn = 1.5 × 3 = 4.5 inches
after 3 hours more of burning the length will be = 8.5 - 4.5 = 4.0 inches.
The candle be 4 inches tall after 6 hours.