Question
A and B together can complete a piece of work in 36 days
while A and C together can complete the same work in 39 days. If A, B, and C together can complete 75% of the work in 19.5 days then find the time taken by B and C together to complete 77% of the whole work.Solution
Total time taken by A, B, and C to complete. the whole work = 19.5/0.75 = 26 days Let the total amount of work = 468 units (LCM of 36, 39 and 26) Efficiency of A and B together = 468/36 = 13 units per day Efficiency of A and C together = 468/39 = 12 units per day Efficiency of A, B, and C together = 468/26 = 18 units per day Efficiency of A = 13 + 12 – 18 = 7 units per days efficiency of B=18-12=6days efficiency of C=18-13=5days Then the efficiency of B+C= 6+5=11days Required time taken of B+C= (468×.77)/11 =32.76days
If numbers of students who apply for Graduation in 2011 are 100/3% less than students who apply for Graduation in 2012 then, number of students who appl...
The question consists of two statements numbered “I and II” given below it. You have to decide whether the data provided in the statements are suffi...
In apartment T if the number of 1 BHK flats are 18% more than that of apartment Q and the number of 2 BHK flats are 20% less than that of apartment S, ...
Find the ratio between the total number smart watch manufactured by Fire-Boltt in July to the total number smart watch manufactured by Noise in August.
Out of the total number of tourists from USA, 42% are females. If out of the total number of female tourists from USA, 20% are going to Shillong. How ma...
If all five workers start working together, how many days will they take to complete the entire 500 units of work?
The graph and the table below show the units sold by two salesmen, Mr. P and Mr. Q, in 4 months from January to April. Study the graph and the table and...
Find the ratio of the total males in Delhi and Chandigarh together to the total number of females in the same cities together.
Find average number of boys in school – C, D and E.
The Bar graph given below shows the number of males and femalesManager's in four different Companies.
What is the difference between the total nu...
