Question
A is twice as efficient as B at completing a task, and
together they can finish the task in 20 days. How many days would A alone take to complete the task?Solution
A is twice as efficient as B, and together they can complete a task in 20 days.  Let B's work rate be x.  A's work rate is 2x.  Combined work rate of A and B: 2x + x = 3x.  Together they complete the task in 20 days: 3x = 20   x = 1 /60  A's work rate is 2x=2× 1 /60 =1 /30 =30days
Of the four given options, choose the most appropriate one.
The laws need to be taken down into multiple sections, each to apply specific parts of the value chain and in accordance with the Outer Space Treaty
If you have low appetite for risk, your aspiration will always remain low.
In the given question a phrase of the sentence is printed in bold which needs to be improved. Among the given options choose the option that can improv...
We have denied our young the benefits of tapping into indigenous knowledge replete of time-tested techniques for improvin g non-cognitive intelli...
In a system that sets much store by retain of powering to censor films in the name of certifying them, random attempts by petitioners seeking cut...
I was not the only person to be blamed for the blunder there was my colleagues too.Â
In an examination, it is more important to answer accurately than a quick finish .
Due to threats from terrorist leaders, any Kashmiri families sent one of their sons to be trained in Pakistan and then to be developed in Kashmir.
...It was a sturdy house (completing) with a fine fireplace and chimney.
Relevant for Exams:
