Calculate how many days it will take for 10 boys to paint a 80 m long wall if 6 boys can paint a 70 m long wall in 8 days,	Choose the correct option
A) 9.48 days B) 3.48 days C) 7.48 days D) 5.48 days E) 6.48 days

Rationale: "the length of wall painted by one boy in one day = 70 / 6 * 1 / 8 = 1.46 m no . of days required to paint 50 m cloth by 8 boys = 80 / 10 * 1 / 1.46 = 5.48 days . d"
Answer: D