exam Maths Puzzle Numerical Ability

add or subtract. Factor and simplify

1 - x-5 over
x^2-25 - x^2-4x-5

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exam Other Question

sum of the digits of a two no. is 9 the no. obtained by interchanging the digits exceed the given no. by 27 find the given no. How many quarts of milk containing 4% of butterfat and how many quarts of cream containing 24% of butterfat must be mixed to make 200 quarts of milk containing 12% of butterfat?