Answer:
Ivan gets £90 more than Tanya
Explanation:
Given that
Total amount = £150
Ratio: 4:1
First of all we have to find the sum of ratio: 4+1 = 5
Now,
Ivan's Share:

Tanya's Share:

Ivan gets £120 and Tanya gets £30
The difference between their shares is the answer.
So,

Hence,
Ivan gets £90 more than Tanya