exam Maths Puzzle Numerical Ability

x^2y^2+3x^2y-4x^2

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exam Other Question

The sum of a two-digit number and its reverse is 121. The ones digit is seven more than the tens digit.what is the number? solve

x
over
5x+10
plus
x-3
over
x+2
equals
7
over
5

A)no solution
B) -8
C) -29
D) -17