Good idea

The grey haired man recognized Tamara as she use to come regularly in cafeteria. He looked at manager and said “ Please give her the account book”

The Manager fetched the book from desk and handed it to Tamara. Tamara went through pages and did some markings with pencil.

“Uncle, I have marked the mistakes there in accounting” said Tamara and pushed the book towards the old man. Old man adjusted his specs and ruffled the pages.

“Good work, child. Well are you accounting student??” said the man.

“No, uncle I am doing JRF in Mathematics” said Tamara.

“Thank you, actually my shop accounts were managed by a boy before who was student from accounting department last year he left university after completion of his degree. And the CA has very high charges for accounting, so will you do this work for me??? I will pay you for this" said the old man.