Question
A can complete 12% of the work in 15% of the allotted
time. A and B worked for the entire period of the allotted time and the work was completed on time. What portion of the work was done by B?Solution
Let the total time taken by them be 100 minutes. So,  15% of 100 minutes = 15 minutes Now, 12% of work is completed in 15 minutes by A 4% of work is completed in 5 minutes by A 80% of work is completed in 100 minutes by A If A can complete 80% in 100 minutes, then, B will complete the remaining portion i.e. (100 - 80) = 20% ∴  20% of the work was done by B.
Which of the following is the justification that aligns text on both margins of a document in Word?
If both the equations I and II given below are added, then find the product of roots of newly formed equation.
I: 3x2 + 9x + 5
...
The ratio between the speed of a bus and train is 15:27 respectively. Also, a car covered a distance of 720 km in 9 hours. The speed of the bus is three...
Two places X and Y are 450 km apart. A truck leaves place X from place Y and at the same time another truck leaves place Y to X. Both the men meet 9 hou...
If x and y are the roots of x2 + x + 3 = 0, then (x11 + y11)/(x-11 + y-11) is equal to:
The main folder on a storage device is known as
If the product of roots of equation x2 - 3(2p+4)x + (p2 - 24p + 145) = 0 is unity, then 'p' can take the values as
A train of length 260 m crosses another train of length 120 m running is opposite direction in 5 sec. If speed of longer train is 90 km/h, then in what ...
The question consists of four statements: I, II, III and IV given below it. You have to decide whether the data given in which of the following statemen...
A and B are the roots of equation x2 - 13x + k = 0. If A - B = 5, what is the value of k?
Relevant for Exams:
