exam Maths Puzzle Numerical Ability

Ms. Smith went on a diet and lost 10pounds which was 6% of her body weight before she started her diet. What was her weight before and after dieting?

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In Isosceles trapezoid ABCD, the longer base, AB, is one and one half times as long as the shorter base, CD. The other two sides, AD and BC, are both 13 cm. long.
a. If the pe solve equation for real values of the variables x3+9x2+20=0,6a3-5a2-4a=0,y4-26y2+25=0and square root x-2=5 and 3square root x+1=square root 6