Alan’s pocket money is 100%. Alex gets 30% more, so Alex = 130% = $26.

[[model:questions/solutions/q5453.png]]

• Alex → 130% → $26
• 10% → $26 ÷ 13 = $2
• Alan → 100% = 10 × $2 = $20

Alan gets $20.
Check: 30% of $20 = $6; $20 + $6 = $26. ✓