In a bundle of 1000 flowers, 200 have 13 petals each, 700 have 15 petals each and the rest have 17 petals each. What is the average number of petals that the 1000 flowers have?
(a) 12.1
(b) 14.8
(c) 15.5
(d) 15.8
(e) 16.1



Sample GMAT Question
The calculation of the weighted average is as follows:
(200 × 13 + 700×15 + 100 × 17) / 1000
= 14.8


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