exam Maths Puzzle Numerical Ability

Hello,

Please help me understand!
If a chord AB is not equal to diameter XY, which is longer?

Thank you

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exam Other Question

The sum of two numbers is 112. The second is 7 more than 4 times the first. What are the two numbers?

Lane invested $14,000 part as 15% and part at 2%. If the total interst at at end of year was $1060 how much did she invest at 15%? write equation in standard form?

y+3=3(x+5)