1. The sum of 2 numbers is 95/73 of the first number. The second number is what percent of the first?
Solution:
x+y = 95/73*x
By solving the above equation, we get
y/x = 30.13%
2. A student multiplied a number by 2/3 instead of 3/2. What’s the percentage error in the calculation?
Solution:
Error = 3x/2 -2x/3
= 5x/6.
Error Percentage = 5x/6 * 3/2*1/x * 100
= 125%.
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