Given: Ivan and Tanya share £150 with a 4:1 ratio.
Let x represent the variable amount of money.
Ivan: 4x
Tanya: x
4x + x = £150
5x = 150
x = 30
Ivan = 4(30) = £120
Tanya = £30
£120 - £30 = £90
Therefore Ivan gets £90 more than Tanya, which is four times more than Tanya.