Question

please answer the question.​

Answer 1

Answer:

Yes the old man have found the correct anwer.

Answer 2

he must have had derived the approximate value.

first son= 3/8 ×15=5.675=5cars.

second son= 3/5×9=5.4=5 cars.

third son=15-(5+5)=15-10=5 cars.