exam Maths Puzzle Numerical Ability

In a two digit number, unit’s digit is 3 more than the ten’s digit. The number formed by interchanging the digits and the original number are in the ratio 7 : 4. Find the number

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exam Other Question
Find all of the real and imaginary zeros for the polynomial function.
12) f(x) = x3 - 2x2 - 25x + 50 Can anyone give me the two solutions to this absolute value problem:

|-6w-1| = |-6w+5|