The following table gives quantity of various items used by a restaurant during four months of the year (In kg.) Food Item March April May June A 220 180 270 320 B 255 320 390 420 C 280 295 280 315 D 350 310 250 280 E 308 340 350 365 The quantity of E used in the month of March is what percentage of the total quantity of food items used in the May?

20% 14% 12.3% 17.8%

20%

Total quantity of food in May = 270 + 390 + 280 + 250 + 350 =  1540  Required percentage =  \(\frac{308}{1540}\) × 100 = 20%