Jame gets 20 singing lessons. He gets the first lesson free and after the first 10 paid lessons he only needs to pay for every other lesson. Each lesson is $5. His uncle pays for half. How much does James pay?
Step-by-step reasoning:
35
The first lesson is free.

The lessons 2 to 11 cost 10 * $5 = $50.

He then had 9 remaining lessons where he had to pay for every other one.

So he pays for lessons 13,15,17&19 = 4 lessons.

Those lessons cost 4 * $5 = $20.

So in total, the cost was $50 + $20 = $70.

So he paid $70 / 2 = $35.

.

Thus, the answer is 35