D type ore extraction by company X in 2016 is 25% more than the average of the A type ore extraction by company Y in 2012, 2013 and 2014. If the D type ore extraction by company Y in 2016 is two- fifth of the A type ore extraction by company X in 2013, then find the D type ore extraction by companies X and Y together in 2016.

Explanation

D type ore extraction by company X in 2016 = 5 4 × 60+75+45 3 = 75 kg D type ore extraction by company Y in 2016 = 2 5 × 90 = 36 kg Required sum = 75 + 36 =111 kg (13-18) Total number of products manufactured by A = 20000 × 20 100 = 4000 Total number of products sold by A = 15 100 × 12000 = 1800 Total number of unsold products by A = 4000 – 1800 = 2200 Similarly Companies Total number of products manufactured Total number of products sold Total number of unsold products A 4000 1800 2200 B 3000 2160 840 C 5000 3480 1520 D 2000 1440 560 E 6000 3120 2880