Foundation Mathematics Primary 3 Whole Numbers

What are the next two numbers in this sequence? 5, 10, 20, 40, ___, ___.

A 60, 80
B 50, 60
C 80, 160
D 80, 120
Show Worked Solution

Worked Solution

Step 1: Find the pattern: 10/5=2, 20/10=2, 40/20=2. Each term is doubled. Step 2: Next term: 40 x 2 = 80. Step 3: Term after that: 80 x 2 = 160. The next two numbers are 80 and 160.

Correct answer: 80, 160

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