Solution : First we have to find cost price of mixture, as seller is gaining 25 % profit on mixture so its cost price will be
50=C.P of mixture *125/100=C.P of mixture=40
30/Quantity of dearer=60-40/40-25=20/15=4/3
Quantity of dearer=30*3/4=22.5Kgs
Directions: Read the following information to answer the question.
Explanation :
Ratio of times taken by A and B = 1 : 3.
If difference of time is 2 days, B takes 3 days.
If difference of time is 60 days, B takes { 3/2} x 60 = 90 days.
So, A takes 30 days to do the work.
A's 1 day's work =1/30
; B's 1 day's work =1/90
(A + B)'s 1 day's work = 1/30+1/90
=4/90= 2/45
A and B together can do the work in
45/2= 22 1/2 days.
Directions: Read the following information to answer the question.
Explanation :
(A + B + c)’s 1 day’s work =1/24+1/36+1/4=13/144
Work done by (A + B +C) in 4 days ={13/144}x 4 =13/36
Work done by B in 3 days ={1/36}x 3=1/12
. Remaining work =1 -13/36+1/12=5/9
(A + B)’s 1 day’s work = 1/24+1/36=5/72
Now,5/72
work was done by A and B in{72/5}x{5/9} = 8 days.
Hence, total time taken = (4 + 3 + 8) days = 15 days.
Directions: Read the following information to answer the question.
Explanation :
Ratio of times taken by Sakshi and Tanya = 125 : 100 = 5 : 4.
Suppose Tanya takes x days to do the work.
5 : 4 :: 20 : x
x ={4 x 20}/5
x = 16 days. Hence, Tanya takes 16 days to complete the work
Directions: Read the following information to answer the question.
They will meet after every 360/(13-8) = 72 sec
They will meet at the starting point next time at
LCM(360/8,360/13) = 360 sec
Hence they will meet 5th time at the starting point =360/72 = 5
Therefore they have met 4 times before.