The following table shows the numbers of pairs of shoes of 6 different brands sold by a shop during a given week.
|
Brand |
Shoes |
|
B1 |
42 |
|
B2 |
58 |
|
B3 |
61 |
|
B4 |
49 |
|
B5 |
71 |
|
B6 |
49 |
The shop also sells brand B7 now. The number of pairs of shoes sold of B7 are 20% more than the average number of shoes sold of the other 6 brands. What is the number of shoes sold of B7?
Answer & explanation
Correct answer: option 4
Average number of shoes sold = \(\frac{42 + 58 + 61 + 49 + 71 + 49 }{6}\)
= \(\frac{ 330 }{6}\)
= 55
Number of shoes sold from B7 = \(\frac{6}{5}\) × 55
= 66