Math, asked by RajANUSHKA, 1 year ago

Please help me in solving que no.31.......I will make you brainlist

Attachments:

Answers

Answered by mehurahil
1
two cars are moving in same direction and towards each other
so let the speed of cars be =x & y
if they move in same direction
then speed = x-y
if they move towards each other then the speed =x+y
according to the question
7(x-y)=70
x-y = 10 _____ 1
and
x+y =70 ______ 2

on elaminating the equation 1 and 2
x-y = 10

x+y = 70
_______


-2y = -60
y = 30
put value of y in eq 1
x-y= 10
x-30= 10
x = 40
so the speed of car A = 40km/hr
and car B = 30 km/hr

mehurahil: rajsthan , bhilwara
RajANUSHKA: Okay
mehurahil: and uh
RajANUSHKA: From Ranchi
mehurahil: okay
RajANUSHKA: Okk byee bhaiyaa....
mehurahil: best of luck for future
mehurahil: ya sure
RajANUSHKA: Thanks
mehurahil: thanks
Similar questions