Section: Arithmetic Reasoning
7)
If 25 percent of x is 80, what is 90 percent of x?
Explanation
First set up the equation to determine x.
25% of x = 80 and 25% = 1/4. Similarly 90% = 9/10
Therefore, 1/4x= 80 so, x = (4/1) x 80 = 320
So, 9/10x = 9/10 x 320 = 288
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