Question
Two workers, 'X' and 'Y', can
complete a task on their own in 18 days and 30 days, respectively. If they work on alternate days, beginning with 'X', how many days will it take to finish the work?Solution
Let the total work be the LCM of [18, 30] = 90 units. So, the efficiency of 'X' = (90/18) = 5 units/day. Efficiency of 'Y' = (90/30) = 3 units/day. Work done on the first day by 'X' = 5 units. Work done on the second day by 'Y' = 3 units. So, the work done in two days = 5 + 3 = 8 units. Amount of work done in 22 days = 8 × 11 = 88 units. The remaining 2 units will be completed by 'X' on the 23rd day.
Which of the following represents the smallest unit of data in a computer?
Which component issues signals at regular intervals?
Which of the following is known as the brain of a computer?
What does the .org domain represents?
In Windows computer, the deleted files are transferred to
The session layer of the OSI model is responsible for:
The key utilized to activate the execution of a selected command is:
High level programming language can be converted to machine language using which of the following ?
What is the purpose of a firewall in a computer network?
Java is referred to as a(n) __________ .
Relevant for Exams:
