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Maths Puzzle
Numerical Ability
Rita invested a portion of her retirement money of PHP 317, 000 at 9% and the remainder at 10&. If the total income is PHP 30,200, how much did she invest at each rate?
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I am having problems setting up this problem. The sum of the digits in a two digit number is 8. When the digits are reversed, the new number is 8 less than the original number. What is the original number?
A coffee wholesaler blends together three types of coffee that sell for $1.95, $2.10, and $2.25 per pound so as to obtain 100 pounds of coffee worth $2.13 per pound. If the wholes