a) $143 is divided in the ratio 2:3:6 calculate the smallest share. b) A prize is divided between 3 people X,Y…

a) $143 is divided in the ratio 2:3:6 calculate the smallest share. b) A prize is divided between 3 people X,Y and Z. If the ratio of X’s share to Y’s share is 3:1 and Y’s share to Z’s share is 2:5, calculate the ratio of X’s share to Z’s share c) If a_3=12:a calculate the positive value of a.

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