Question
A can do a job alone in 66 days, B can do it alone in 55
days, while A, B and C working together can complete the job in 22 days. In how many days can C do the job alone?Solution
LCM (66, 55, 22) = 330 Let the total work be the individual time taken by the workers. Now, total work = 330 units Efficiencies, A does each day = 330/66 = 5 units B does each day = 330/55 = 6 units (A + B + C) together do each day = 330/22 = 15 units Now, C does each day = 15 -(5+ 6) = 4 units Time taken by C to complete the job alone. = 330/4 82.5 days In 82.5 days, C can do the job alone.
What will come in the place of the question mark (?) in the following equation, if ‘+’ and ‘–’ are interchanged and ‘×’ and ‘÷’ are ...
Statement: Ram has only one month's time to prepare for the exam, so he practices math everyday.
Conclusion:
i) Ram is weak in mathem...
B's mother is the daughter of F. C is the son of F and D. G is the son of C and E. D is the mother of R. How is F related to G?
A statement is followed by two conclusions, numbered I and II. Find out which of the following conclusion(s) is/are true based on the given statements.<...
Which of the following terms will replace the question mark (?) in the given series?
DCZ, FFY, ?, JLW, LOV
Select the number that can replace the question mark (?) in the following series.
12.24, 48.96, 192.384, ?
Seven students named P, Q, R, S, T, U and V are sitting around a circle facing the centre. Each one of them has secured one of different Ranks from 1 to...
Read the following information and answer the question that follows.
1. Rohit, Shobit and Manu play volleyball, tennis and Kho-Kho.
2. Roh...
In this question, a statement and related two conclusions have been given in the form of i and ii, assuming that the statements given in the statements ...
Which diagram correctly represents the relationship of pigeons, birds, dogs?
Relevant for Exams:
