Question 67

The following table shows the number of pairs of shoes of 6 different brands sold by a shop during a given week.

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 pairs of shoes sold of B7?

Solution

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.

number of pairs of shoes sold of B7 = (100+20)% of average number of shoes sold of the other 6 brands

= 120% of $$\frac{42+58+61+49+71+49}{6}$$

= 120% of $$\frac{330}{6}$$

= $$\frac{120}{100}\times\frac{330}{6}$$

= $$2\times33$$

= 66

Share on Whatsapp Share on Whatsapp

Create a FREE account and get: