What distance he covered in one way?
A man walks at 4 km/hr on plain, then at 3 km/hr uphill and then returns through the same road at 6 km/hr downhill and at 4 km/hr on the plain. It takes altogether 6 hours. So what distance he covered in one way?
Preparation suggestions for aptitude objective arithmetic and quantitative aptitude by r.S. Agarwalbe through with these topicsages ratio and proportiontime and distance percentages time and workrace and games1. 8 men and 10 women can do a work in 25 days, the same work can be done by 10 children and...
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Answered by: jitusonawane
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Member Since Feb-2006 | Answered On : Mar 27th, 2006
11. After 10 years A will be twice the age of B before 10 years and now if the difference is 9 years between them then what is the age of B after 10 years.
Let present ages of A and B be x and y respectively.
According to the question
x+10 = 2(y-10) after solving we get
x-2y = -30 eq. (1)
x-y = 9 eq. (2) after solving above equation we will get there present ages as such A = 48 and B = 39.
After 10 years B will be 49 yrs
Let us take pure milk contains 100 litre
20% replaced by water =>100*20/100=20
100-20=80
now 80 litre milk is available
Again 20% replaced by water =>80*20/100=16
80-16=64
now 64 litre milk is available
Again 20% replaced by water =>64*20/100=12.8
64-12.8=51.2
now 51.2 litre milk is available
10 >ans data is insufficient if L is length of race answer is 25 - (150/L) and it is explained below let L be the length of race and T be the time taken by A to complete race then As...
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Let the distance covered one way on plain be x ,uphill be y
24.t_p: the time for plain. t_up: the time for uphill. t_down:: the time for downhill.(1): t_up * 3 = t_down * 6 ==> t_up = 2 * t_down ; because they have the same distance.(2): t_p...