Question
P, Q and R can do some work in 11 days, 20 days and 55
days respectively. In how many days can the work be done, if P gets the assistance of Q and R on alternate days?Solution
Let, total work = (LCM of 11, 20, and 55) = 220 efficiency of P = 20 units Efficiency of Q = 11 units Efficiency of R = 4 units Work done by P and Q in first day = 20 + 11 = 31 Work done by P and R in second day = 20 + 4 = 24 Total work done by P, Q, and R in 2 days = 31 + 24 = 55 55-unit work done by all three in = 2 days  220-unit work done by all thee in = [2/55] × 220 = 8 days.
Which among the following is categorized as a Mediterranean poultry breed?
The isolation distance for the production of foundation seed in bajra is:
Which one of the following soil type will have maximum soil erodibility factor?
What is the primary role of organic matter in soil?
Name the alkaloid that is obtained from the autumn crocus, which is the most important chemical used by breeders to induce the doubling of chromosome nu...
In germination test the commonly used term B P stands for:
Which of the following is considered as an essential step in the exchange of gases during respiration and photosynthesis?
What is the tag color of certified seed?
Which process describes the mixing of soil by earthworms?
Leaf curl disease of cotton is due toÂ
Relevant for Exams:
