exam Maths Puzzle Numerical Ability

Please help me solve this problem.

5-3[5-2(4x-1)]

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exam Other Question

Ana is five years older than Beth.In 5 years, the product of their age is 1.5 times the product of their present ages. How old is Beth now? what is the magnitude
U: magnitude 1,850, bearing 125 degrees
V: magnitude 2,960, bearing 25 degrees
W: U+V