exam Maths Puzzle Numerical Ability

Chords AB and CD intersect at point E within a circle; AE=9 and EB=1

a) If CD=6 and CE=x, what expression represents ED in terms of x

B) Find CE

c) Find ED

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exam Other Question

The ages of Ann and Bill add up to 91. Ann is now three times as old as bill was at the time when Ann was twice as old as Bill is now. How old are Ann and Bill now? Please give an explanation or place where I can find this information. Thanks. -4(2.5x+8.7)=(1.4-9.2x)(6)