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Question

Can anyone kindly help on this? Thank you in advance. 

Answer

Adults       [———————–5u——————-]

                   [  5/8  < 60yo      ][3/8 >=60yo]

Children   [– u—]

Total tickets  sold= 6u

(a)   [(3/8)(5u)] / 6u  =  (15/8) u / 6u  = 15/48 = 5/16

 Hence fraction of tickets sold for adults 60 and above is 5/16

(b)  (5/8)(5u)(16) + (3/8)(5u)(11) +7u = 5589    <——— x 8 on both sides

400u + 165u +56u = 44712

621u = 44712

u = 72

Total tickets sold = 6u = 6 x 72 = 432

Please click “Accept Answer” if the answer is correct.   If not, please furnish the answer key. Thanks.

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