Question
'Sumit' can complete (3/8) of a job in 24 days, where as
'Sumit' and 'Tarun' together can finish it in 16 days. Calculate the time 'Tarun' needs to complete 60% of the job alone.Solution
ATQ, Time taken by 'Sumit' to complete the whole job alone = 24×( 8/3) = 64 days Let the total amount of work = LCM of 64 and 16 = 64 units Efficiency of 'Sumit' =64/64 = 1 units per day Efficiency of (Sumit + Tarun) = 64/16 = 4 units per day Efficiency of 'Tarun' = 4 − 1 = 3 units per day Desired time = (0.60 × 64/3) = 12.8 days
Answer the questions based on the information given below.
Seven persons D, E, F, G, H, I and J scored different marks in an exam. E scored jus...
Five persons W, U, Q, M and K have different weights. U is the lightest person. Q is heavier than M but lighter than K. W is lighter than M. Who among t...
Certain number of boxes are in a stack, such that the box, which is at the bottom, is numbered as 1, the box above it as 2 and so on. Box W is 14t...
All 96 students in a class are standing in a row facing north. Pallavi is 35th from the right end. What is the position of Pallavi from the ...
____ is the second tallest person and _____ is the third lightest person.
In a class of 50 students, Sharan is 15th from the top. What is his rank from bottom?
How many students scored more marks than V?
How many straight lines are there in the given figure?
Which among the following pole is the third highest pole?
There are five persons with different heights. N is shorter than M. J is taller than L. K is shorter than J but taller than M. M is not taller than L. ...
