Textbook: Page 70 Question 22

22. Taj has three scoops for measuring flour. The largest scoop hold 2 1/2 times as much as the smallest one. The middle scoop holds 1 3/4 as much as the smallest one.

Describe two different ways in which Taj could measure each of the following quantities. He can use full scoops only.

a) 3 1/4 times as much as the smallest scoop holds

b) 1/2 as much as the smallest scoop holds

                                                                                                                                                      

Before we can find out what what the other cups are we need to find out what the smallest cup is.

Smallest cup = X.... So 2 1/2 ÷ X = 2 1/2 or 1 3/4 ÷ X = 1 3/4.
X = 1
Smallest cup = 1
Large cup = 2 1/2 or 5/2
Medium cup = 1 3/4 or 7/4

ANSWER..
a) First way: 1 large scoop + 1 medium scoop - 1 small scoop

            
Second way: 2 large scoop - 1 medium

ANSWER
b) First Way: 1 large scoop - 2 small scoop

Second Way: 2 medium scoops - 3 small scoop