Question

Can anyone explain that answer PLEASE Its class 10 math ex3.5 question number 4 Roman number Iv

Answer 1

Answer:

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U = 60km/h

V = 40km/h

Step-by-step explanation:

D = S×T

5(u-v) = 100

u-v = 20 ..........eq1

1(u+v) = 100

u+v = 100 .........eq2

Adding EQ2 and EQ1

u + v = 100

u - v = 20

+v and -v get cancled

2u = 120

u = 60

sub u = 60 in eq1

u - v = 20

60 - v = 20

60-20 = v

v = 40

Hope this was useful