exam Maths Puzzle Numerical Ability

please help me to solve the systems of equations

3/2X-1/3Y=1/2
2X-1/2Y=-1/2

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exam Other Question

Anu chooses a diagonal from a regular 8 sided polygon. Anitha chooses another diagonal from the same polygon. What is the probability that they choose 2 diagonals of the same leng Trying to solve a radical word problem using a formula that is given which is:

W = 91.4 - (10.5 + 6.7 square root v - 0.45v)(457 - 5t) divided by 110

The problem states: W =