A' takes 3 hours more than 'b' to walk a distance of 30km. but if 'a' doubles his pase he is ahead of 'b' by 1 and 1/2 houres . find there pase of walking
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its about linear equation in 2 variables
let time take by a=30/x
speed of a = x
let time taken by b=30/y
speed of b=y
therefore
30/x=30/y+3
first equation
2nd is (doubled his pace)
30/2x+3/2=30/y
solve these 2 equaitons
let time take by a=30/x
speed of a = x
let time taken by b=30/y
speed of b=y
therefore
30/x=30/y+3
first equation
2nd is (doubled his pace)
30/2x+3/2=30/y
solve these 2 equaitons
11kishore2000:
bro its based on distance=speed x time formula
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