Question
‘X’ and ‘Y’ together can complete a work in 10
days, while ‘Y’ and ‘Z’ together can complete the work in 8 days. If ‘Y’ takes 12 days to complete the work alone then find the approximate time taken by all three together to complete 65% of work.Solution
Let the total work = 120 units Efficiency of (X + Y) = 120/10 = 12 units/day Efficiency of (Y + Z) = 120/8 = 15 units/day Efficiency of ‘Y’ = 120/12 = 10 units/day Efficiency of (X + Y + Z) = (12 + 15 – 10) = 17 units/day Required time taken = (0.65 × 120)/17 = 5 days (approx)
Select the option that is related to the third term in the same way as the second term is related to the first term.
SZ : RA :: IL :
Four of the following five are alike in a certain way and hence they form a group. Which one of the following does not belong to that group?
If in a certain language KINDLE is coded as ELDNIK, how is FASHION coded in that code?
Select the correct combination of mathematical signs that can sequentially replace the '$' signs and balance the equation.
180 $ 9 $ 6 ...
If all the vowels in the word ‘REJECTION’ are changed to the next letter in the English alphabetical order and all the consonants remain the same th...
In the word ‘IMPORTANT’ all consonants are written as their preceding letter and all vowels are written as their following letters. Now all letters...
Six boxes labelled L, M, N, O, P, and Q, are arranged vertically from top to bottom. The top position is considered the 1st position, whereas the bottom...
Which of the following friends, like Purple ?
Seven persons are sitting around a circular dining table facing the towards the centre. S is sitting to the immediate left of Y and third to the right o...
If CAT is coded as 8 and DEAF is coded as 4, then what is the code for ' FED '?
Relevant for Exams:
