Problem
SparX 5: Item B
Bookwork code: Q77
What is $1 \%$ of Dan's number?
I am thinking of a number. $20 \%$ of my number is 160 .
Dan
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Solution
Step 1 ：Given that 20\% of Dan's number is 160, we can set up an equation: \(0.20 * x = 160\)
Step 2 ：Solve for x: \(x = \frac{160}{0.20} = 800\)
Step 3 ：Now, we need to find 1\% of Dan's number: \(0.01 * 800 = 8\)
Step 4 ：\(\boxed{8}\) is 1\% of Dan's number
