exam Maths Puzzle Numerical Ability

A horse and a cow togather cost $800.the horse is sold a a profit of 10% and the cow t loss of 10%.If the total profit of 2.5% is made,what is the cost price of the horse?

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exam Other Question

The length of the field is 1/2 the length of the entire flag. There are seven shaded stripes and six unshaded stripes. Though the stripes differ in length, they are of equal widt Give the zeros of the function, f(x)= x squared + 6x + 8 over x squared + 4x +4
A. All real numbers except -2 and -4
B.-2 and -4
C. all real numbers excpet -2
D. -4