Question

Chandana and Venu purchased 12 note books and 10 note books respectively. The cost of each note book is Rs. 15. Then how much amount should they pay to the shopkeeper?

Answer 1

Number of note books purchased by Chandana = 12 

Number of note books purchased by Venu = 10 

Total number of note books purchased together = 12 + 10 

Cost of each note book = Rs. 15 

Cost of (12 + 10) note books = (12 + 10) × 15 = 22 × 15 

The amount paid to the shopkeeper = Rs. 330