Question
‘P’ and ‘Q’ can do a piece of work in 12 days
and 18 days, respectively. ‘P’ started working alone and was replaced by ‘Q’ after 4 days. In how many days can ‘Q’ complete the remaining amount of work alone?Solution
Let the total work be 36 units (LCM of 12 and 18) Efficiency of ‘P’ = 36/12 = 3 units/day Efficiency of ‘Q’ = 36/18 = 2 units/day Let the number of days taken by ‘Q’ to finish the remaining amount of work be ‘x’ ATQ, (3 × 4) + 2x = 36 Or, 2x = 36 – 12 Or, 2x = 24 Or, x = 24/2 = 12 Therefore, time taken by ‘Q’ to complete the remaining work alone = 12 days
Who was the teacher of Sheikh Nizamuddin Auliya?
Simplify 24 ÷ 4 × 2 + 8 − 4
In the context of Bonds, consider the following statements:
1. Bond Prices fall when inflation increases
2. Bonds help in Capital Prese...
In an examination of Hindi, English and Mathematics subjects, the total marks are 120, 140 and 100 respectively. A student gets 40%, 55% and 45% marks...
What is the maximum limit of gratuity payable under the act before the 2018 amendment?
Average blood volume in a normal human being is:
With which of the following sports is Rovers Cup associated?
Who among the following was the president of INC at the time of Non-Cooperation movement in Dec 1920?
The Maratha Kingdom under the Peshwas was
If x runs are second by Rohit, y runs by Shreyas and z runs by Virat, then x : y = y : z = 7:4. If total number of runs scored by Rohit, Shreyas and Vir...
Relevant for Exams:
