book Maths Puzzle Numerical Ability

what is the difference between a scalene triangle and a right triangle?

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book Other Question

Simplify by rationalizing the denominator:
(/11-/5)
________
(/11+5)
Eva invested a certain amount of money at 14% interest and $2000.00 more than that amount at 15%. Her total yearly interest was $1460.00. How much did she invest at each rate?