Question
A alone can complete a piece of work in 12 days and B
alone can complete it in 18 days. If they work together, in how many days will they complete the work?Solution
A’s 1-day work = 1/12 B’s 1-day work = 1/18 Together, 1-day work = 1/12 + 1/18 LCM of 12 and 18 = 36 1/12 = 3/36, 1/18 = 2/36 So together = (3 + 2)/36 = 5/36 Time to complete work = 1 ÷ (5/36) = 36/5 = 7.2 days
Each question consists of four sentences and some sentences are grammatically incorrect or inappropriate. Read each sentence to find out the error in t...
Select the correctly punctuated sentence from the options below.
The ministry has directed all engineering colleges in India, (A)/ the ones that figures in the National Institutional Ranking Framework rating, (B)/ to ...
To write a poem I need a pen, a diary and also the quiet place
I had a hard time paying the driver as I had only hundreds rupee note.Â
Inference- Sports and empowerment of women
I. When girls exist on the margins of play, they learn that public spaces belong to men. You see th...
Select the correctly punctuated sentence from the options below.
Organizing World Cup matches in England imply that rains can be a constant threat.Â
Select the correctly punctuated sentence from the options below.
Choose the correct combination of grammatically incorrect sentences
I. The COVID-19 pandemic has had a profound impact on the global economy, ...
Relevant for Exams:
