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Let work = 30x units (since X takes 30 days).
Efficiency of X = 30x / 30 = 1x unit/day.
Y is 50% more efficient, so Y's efficiency = 1x + 0.5x = 1.5x units/day.
75% of work = 30x × 0.75 = 22.5x units.
Combined efficiency = 1x + 1.5x = 2.5x units/day.
Time taken = 22.5x / 2.5x = 9 days.
Some people despise manual workers.
In the following question a sentence or a phrase is given which can be substituted by one word. Choose the most appropriate word explaining the sentenc...
He kept stared in me in silence.
Phrasal verbs are highlighted in bold in the below-given sentences. Mark the option that best describes its meaning.
The chef decided to whip...
Direction: Identify the sentence in which the given phrasal verb is used CORRECTLY.
Bring up
A. The viral video of the skateboarder's in...
The old man ________ without any trouble last night.
Find the correct meaning of highlighted word/phrase.
She gave up the job after getting married.
One who suffers from delusions of greatness
Blow Off
A. She felt it was disrespectful when he blew off her invitation to the important event.
B. She regretted blowing off the op...
an organism that lives in or on an organism of another species and benefits by deriving nutrients at the other's expense.