Question
A, B and C can do a job working alone in 50, 75 and 20
days respectively. They all work together for 4 days, then C quits. How many days will A and B take to finish the rest of the job?Solution
LCM of 50,75 an 20 is 300 units Each day A can do 300/50 =6 units Each day B can do 300/75 =4 units Each day A can do 300/20 =15 units In each day 6+4+15=25 units for 4 days they do 4*25=100 units Each day A and B an together do 10 units Therefore 200/10 =20 days
What is the Capital Asset Pricing Model (CAPM)?
When we are travelling in a bus, we tend to move forward when the bus is stopped suddenly. This is because of ________.
Guard cells are involved in the process of ________.
What is the maximum period of validity for prior notice of strike or lock-out according to the Code on Wages Act 2020?
Consider the following statements:
1.The World Bank Group has recently launched a new project called Business Ready
2.Business Ready initi...
What is the average of first 22 multiples of 2.2?
Which of the following numbers will replace the question mark (?) in the given series?
3, 7, 13, 21, 31, ?
Which one of the following comes under the 'State List' under the Seventh Schedule of the Constitution of India?
In a group of 36 persons, a total of 16 take tea while 9 take tea but not coffee. How many persons in this group take coffee but not tea?
Which of the following best describes switching in computer networking?
