(a)(i)8.20-6.10=2hrs 10mins
Bus 2,1/6×90=195km
580-195=385km
Rs=120+90=210km/h
T RD/RS=385/210=1,5/6hrs
Distance 15/6×90=165km
From P=165+195=360km
(ii)8.20+1.50=10.10 a.m.
(b)(i)9.30-8.20=1hr10min=1,5/6hrs
Car D=1,1/6×120=140km
R.S.=180-120=60km/hr
T D/RS=140/60=2,1/3hrs
Distance from Q
2,1/3×180=420km
(ii)9.30 + 2.20=11.50a.m.
Belan answered the question on February 25, 2019 at 14:05
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