Answer: 25%
Step-by-step explanation:
Approximate value = 350
Exact value = 280
The percentage error will be calculated by using the formula:
= (Approximate value - Exact value). Exact value × 100
= (350 - 280) / 280 × 100
= 70/280 × 100.
= 1/4 × 100
= 25%
