Question

How many coconuts did the first two monkeys take?

Answer 1

Have many coconuts are there in two heaps when the second money goes home?

$$12-2=10$$

Have many coconuts are there when  the second monkey awakes?

$$10(\dfrac{3}{2})+1=16$$

Have many coconuts are there when  the first monkey awakes?

$$16(\dfrac{3}{2})+1=25$$

Have many coconuts did the first monkey take?

$$(25-1)(\dfrac{1}{3})=8$$

Have many coconuts did the second monkey take?

$$(16-1)(\dfrac{1}{3})=5$$

How many coconuts did the first two monkeys take?

$$8+5=13$$

The first two monkeys took 13 coconuts.