Answer:
Richard's wife got £904 more than her son.
Explanation:
Richmond and Natasha won a lottery of £5650.
They shared it in the ratio of 4 : 1
So the prize amount Richard got =
= £4520
Now Richard shared his part with his wife and son in the ratio of 6 : 3 : 1.
So the amount his wife got = £

= £1356
And amount shared by his son =£

= £452
Difference in the amount shared by his wife and son = £1356 - £452
= £904
Therefore, his wife got £904 more than his son.