Question

12345questions please give me answer​

Answer 1

1)(a)18*5/18=5

(b)9*5/18=5/2

2)(a)20*18/5=72

(b)80*18/5=288

3) d=300m=300/1000km/hr=3/10km/hr

s=36km/hr

t=d/s=3/10*1/36=1/120hr or 60/120 sec= 1/2sec

4)s=60km/hr

d=450km

t=d/s=450/60=15/2hr or 15*60/2 sec= 450sec

5)20m/sec=20*18/5km/hr= 72km/hr and 92km/hr

so 92 km/hr