Question
A and B can do job in 6 days. B and C can do same job in
12 days. A, B and C together can do same job in 4 days. In how many days A and C together can complete the job?Solution
Total work = Number of days × 1 day’s work (efficiency) Total work = LCM (6, 12, 4) = 12 unit 1 day’s work of (A+B) = 12/6 = 2 unit 1 day’s work of (B + C) = 12/12 = 1 unit 1 day’s work of (A + B + C) = 12/4 = 3 unit Now, 1 day’s work of A = 3 – 1 = 2 1 day’s work of C = 3 – 2 = 1 1 day’s work of A and C = 2 + 1 = 3 A and C together can complete the job in = 12/3 = 4 days
State which has highest, total coarse cereal production
Maggots enter the stem and feed on the growing point of the central shoot and the attacked tiller is converted into a shining tubular structure called "...
_______is a geographical area of land defined by natural topographic features, such as hills, mountains, and ridges, that collects and channels all the...
Which of the following is not an internal indicator?
The essentiality of elements was established by different scientist. Which of the following option is incorrectly matched?
When two well developed breeds are crossed alternatively is knowns as ?
Red colour is used to denote which class of Land capability class
The most widely accepted theory for ascent of sap in trees is
In rice silver shoot is caused due to ____
Seeds which survive freezing or drying conditions for long periods with longer lifespan areÂ
Relevant for Exams:
