The recorded monthly diesel consumption (in litres) of a farm tractor across six consecutive months was: Jan: 320, Feb: 280, Mar: 450, Apr: 500, May: 410, Jun: 340. The average diesel consumption per month in litres over this six-month period was ________ (round off to 1 decimal place).
Answer Key:
383.3
Step-by-Step Solution & Explanation
1. Sum of diesel consumption across 6 months:
$\Sigma = 320 + 280 + 450 + 500 + 410 + 340 = 2300\text{ litres}$
2. Average monthly consumption:
$\text{Average} = \frac{2300}{6} = 383.333\dots \approx 383.3\text{ litres}$