Anna earns K65840 per annum.she spend 45% of it on rent and 35% of the reminder on living expenses.How much does she have left?

First, calculate how much Anna spends on rent:
45% of K65840 = 0.45 * K65840 = K29628

Next, calculate how much she has left after paying rent:
K65840 - K29628 = K36212

Now, calculate how much she spends on living expenses:
35% of K36212 = 0.35 * K36212 = K12677.2

Finally, calculate how much she has left after paying living expenses:
K36212 - K12677.2 = K23534.8

Anna has K23534.8 left after paying rent and living expenses.