Answer: 127.5km
Explanation:
We are informed that Ron cycled 510km last week and that he was under the rain for the 25percent of his journey.
The distance travelled did under the rain will be gotten by multiplying 25% by 510km. This will be:
= 25% × 510
= 0.25 × 510
= 127.5km
He was in the rain for 127.5km