1) Number of Dell laptops sold by store T is what percent more than the number of laptops sold by store P? A) 30% B) 45% C) 40% D) 42.5% Answer: Option CExplanation:Number of Dell laptops sold by store T = $\frac{21}{100}\times2400$ = 504 Number of laptops sold by store P = $\frac{15}{100}\times2400$ = 360 Required percentage = $\frac{504-360}{360}\times100$% = 40%