Question

A restaurant has 30 tables in its dining room. It takes a waiter 10 minutes to set 8 tables. At this rate, how long will it take the waiter to set all the tables in the dining room? How long will it take to set up 16 tables?

Answer 1

All Tables in Dining Room-

Make the given numbers into a fraction- 10/8 (minutes/tables).

10/8 ÷ 2/2 = 5/4

5/4 ÷ 2/2 = 2.5/2 (that is 2.5 minutes to set up two tables)

2.5/2 × 15/15 = 37.5/30

It will take a waiter 37.5 minutes to set up all 30 tables.

16 Tables-

10/8 (minutes/tables)

10/8 × 2/2 = 20/16

It will take 20 minutes to set up 16 tables.