SSC CPO SI and ASI Model Paper 2

(4) Distance travelled by the car innorth direction $=90\times \frac{80}{60}=120$km
Distance travelled by the car in eastdirection = 60 × 1.4 = 84 km
Total distance travelled = 120 + 84= 204 km
Total time taken =$\frac{80}{60}+1.4=\frac{41}{15}$h
Average speed = $\frac{204}{41}\times 15=$
$74\frac{26}{41}$km/h