Subject :IMO Class : Class 7

To organize a lunch, a hotel charges Rs. 500 per hour for use of a dining room plus Rs. 50 per person. What is the total cost for a 2 hour lunch for 50 people?

A2 × 500 + 50 + 45

B2 × 500 + 24 × 45

C2 × 500 + 50 × 50

D 2 × 45 + 50 × 50

how to solve this?