Then came the midterms.
The final exam arrived. Arslan saw a tough question on Bill Discounting. He didn't panic. He didn't try to recall the Key . Instead, he heard the voices of Mirza & Mirza in his head—not giving him the answer, but teaching him the formula.
“Two hundred rupees,” the man said. “It has saved more careers than the university’s placement office.”
In the sweltering heat of a Multan summer, the only cool place Arslan knew was the shaded corner of Al-Faisal Book Bank. He was a first-semester student of B.Com, and his heart sank lower than his grades every time he looked at the syllabus. Business Mathematics wasn't just a subject; to him, it was a dragon with three heads—Profit & Loss, Annuities, and the dreaded Matrix Inversion. Key Book Of Business Mathematics By Mirza And Mirza
That night, he opened the Key . It wasn't just a book; it was a fortress. Every single problem from the main textbook was solved step-by-step. Where the textbook ended a proof with “Hence proved,” the Key whispered, “Here is how you get there, slowly, like a donkey climbing a stair.”
Slowly, painfully, the fog lifted. Logarithms became friends. Break-even points became visible. The word “Annuity” stopped sounding like a disease and started sounding like a paycheck.
“Bhai saab,” he mumbled to the shopkeeper, “I need the solution. Not the textbook. The Key .” Then came the midterms
Arslan walked into the exam hall, confident. He flipped the paper. Question one: “A person buys a washing machine for Rs 25,000 on a 10% flat interest rate over 3 years. Find the installment.”
He passed with a B+.
His teacher, Professor Tariq, wrote formulas on the blackboard like a poet reciting verses, but to Arslan, they were hieroglyphics. After failing his first class test, he decided to visit the famous bookshop. He didn't panic
Humiliated, Arslan went back to the book bank. The old man was there, still smoking.
That night, Arslan did something radical. He covered the right side of every page with a ruler. He took out a blank register and attempted every single problem on his own. Only when he was stuck—really stuck—did he peek at Mirza & Mirza’s solution.
“Beta,” he said softly. “This is not a Key to open the exam door. It is a Key to open your mind. Mirza and Mirza didn't write this so you could copy. They wrote it so you could compare . You do the sum yourself, sweat over it, bleed over it, then open the Key to see if you are correct. You used it backward.”