Answer:
Option B
Explanation:
Percent of laptops (Dell and Lenovo) sold by store Q=23%
Number of laptops (Dell and Lenovo) sold by store Q
= $\frac{23}{100}\times4500$ = 1035
Percent of Laptops (DeII and Lenovo) sold by R and S together =35%+11%=46%
Now, total number of laptops (Lenovo and Dell) sold by R and S together
= $\frac{46}{100}\times4500$ = 2070
Percent of laptops sold by R and S together = 30% + 9% = 39%
Number of Dell laptops sold by R and S together
= $\frac{39}{100}\times2400$ = 936
Number of Lenovo laptops = 2070 - 936 = 1134
= 2070 - 850 = 1220
Required difference = 1134 - 1034 = 99
