Hi there! Have questions about your homework? At Brainly, there are 60 million students who want to help each other learn. Questions are usually answered in less than 10 minutes. Try it for yourself by posting a question! :D

Hi there! Have questions about your homework? At Brainly, there are 60 million students who want to help each other learn. Questions are usually answered in less than 10 minutes. Try it for yourself by posting a question! :D

1.Ram starts working on a job and works on it for 12 days and completes 40% of the work. To help him complete the work, he employs Ravi and together they

work for another 12 days and the work gets completed. How much more efficient is Ram than Ravi? A.50% B.200% C.125% D.100%

Certified answers contain reliable, trustworthy information vouched for by a hand-picked team of experts. Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest.

Let Ram be able to complete the job in N days. He works 1/N of the job per day. In 12 days, he does 12 / N of the job. 12/ N = 40/100 => N = 30 So Ram does 1/30 th of job each day.

let Ravi work 1/M th of the job each day. He can finish the job in M days, alone. The combined working productivity of the two together = 1/30 + 1/ M per day. The remaining part of the job after Ram works for 12 days: 100% - 40$ = 60%

Ram and Ravi complete 60/100 of the job in 12 days 60/100 = 12 * [ 1/30 + 1/M] = 12/30 + 12 / M => 12 / M = 60/100 - 12/ 30 => 1 / M = 5/100 - 1/30 = 1/20 - 1/30 = 1/60 => Ravi does work in 60 days. His productivity is 1/60 per day.

productivity of ram - productivity of ravi = 1/30 - 1/60 = 1/60 additional efficiency of Ram over Ravi = (1/60) / (1/60) * 100 = 100%

Ram is twice as productive as Ravi. So Ram is 100% more efficient as compared to Ravi.