exam Maths Puzzle Numerical Ability

Given triangle ABC similar to triangle DEF. If AB= 3 1/2 and DE=8 3/4, what is the ratio of the altitudes to the longest sides?

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Frank has half of his investments in stock paying an 11% dividend and the other half in a debentured stock paying 13% interest. If his total annual interest is $840, how much does FIND A POLYNOMIAL WITH LEADING COEFFICIENT 1 AND DEGREE 3 THAT HAS ROOTS -1, 1,3 AS ROOTS