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Maths Puzzle
Numerical Ability
If you invest $7,500 in an account paying 8.35% compounded continuously, how much money will be int he account at the end of
(A) 5.5 years?
(B) 12 years?
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book Other Question
One-fifth of a number added to the number itself gives 42. Find the number. If I set this up as 1/5x + x = 42 and mutplied each side by 5, but this does not do it. I end up with 2x = 210. I know the answer is 35. How do I get to 6x = 210?
If the price of a $15 T-shirt is reduced by 1/3, how much sales tax must be paid on the T-shirt in a state having a 4% sales tax?