Tim and Elan are 90 km from each other They start to move towards each other simultaneously Tim at speed

first of all take the ratio 10:5 as 2:1
therefore 2+1=3
now tim ratio=2
every hour they double the speed
current speed of tim=90
which means 90*2/3=60
10 years agoHelpfull: Yes(16) No(0)
let the distance traveled by tim is x km.
then
x/10= (90-x)/5
15x=900
x=60
10 years agoHelpfull: Yes(15) No(3)
0..................90
AFTER 1ST HR
10................85
AFTER 2ND HR
30................75
AFTER 2.30MIN
45..............65
AFTER 2.45MIN
52.5.........60
AFTER 2.50MIN
55 .....58.33
0..................90
AFTER 1ST HR
10................85
AFTER 2ND HR
30................75
AFTER 2.30MIN
50..............65
AFTER 2.45MIN
60.........60

so they meet at 60 km from tim
10 years agoHelpfull: Yes(3) No(1)
after 2 hor distance between them is 45 km..speed ratio after 2 hr-40:20=2:1..so that 45 km will be divided by 2:1 tim-- 2/3*45=30 km
so total distance for tim = 10+20+30=60
10 years agoHelpfull: Yes(3) No(0)
0..................90
AFTER 1ST HR
10................85
AFTER 2ND HR
30................75
AFTER 2.30MIN
45..............65
AFTER 2.45MIN
52.5.........60
AFTER 2.50MIN
55 .....58.33
AFTER 2.54
57....57
SO THEY MEET AT 57TH KM FROM A
10 years agoHelpfull: Yes(2) No(5)
can someone explzin how is this question calculated? I dont get any of the solutions
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60km is the distance travelled by tim untill he meets elan
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ans is 60km
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exactalye 3 houres............
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Tim and Elan are 90 km from each other. They start to move towards each other simultaneously Tim at speed 10 kmph and Elan 5 kmph. If every hour they double their speed what is the distance that Tim will pass until he meet Elan.