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Study the pie-charts given below carefully and answer the questions.
Percentage wise Distribution of laptops (Dell & Lenovo) sold by six stores A, B, C, D, E and Fin March 2014.
Total No of Laptops (Dell and Lenovo) sold = 48000
No of Dell Laptop sold = 28000
Percentage of dell laptop sold
By what per cent is the number of Lenovo laptops sold by store B is more than that of Dell laptops sold by store E ?
Number of laptops of both kinds sold by store B = $$\frac{28}{100} \times 48000$$
= $$28 \times 480 = 13,440$$
Number of Dell laptops sold by store B = $$\frac{32}{100} \times 28000$$
= $$32 \times 280 = 8,960$$
=> Lenovo laptops sold by store B = $$13,440 - 8,960 = 4,480$$
Number of Dell laptops sold by store E = $$\frac{10}{100} \times 28000$$
= $$2,800$$
$$\therefore$$ Required % = $$\frac{4,480 - 2,800}{2,800} \times 100$$
= $$\frac{1680}{28} = 60 \%$$
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