Answer:
number is 7.8
Explanation:
Given : 7.778
To find : Round 7.778 to one decimal place.
Solution : We have given 7.778
We need to rounded it up to one decimal place,
By the significant rule : If the number is greater than five than previous number is increased by 1.
Then number 7 at one decimal place would be increased by 1
7.8
Therefore, number is 7.8