Question

Alka is quite a fast walker . Her speed is 25/16 km per hour . What distance in metres can she walk in 1/5 of an hour​

Answer 1

Given:-

• Speed of Alka$=\frac{25}{16}$km/h

Answer:-

we know that 1 km = 1000m

speed of Alka$=\frac{25}{16}×1000$

$=\frac{3125}{2}m/s$

Suitable formula:-

$speed =\frac{Distance}{Time}$

$speed × Time= Distance$

so,

we have,

speed $=\frac{3125}{2}m/s$

Distance$=\frac{1}{5}$

Distance$=Speed×Time$

$=\frac{3125}{2}×\frac{1}{5}$

$\boxed{\boxed{{Distance=312.5m}}}$

More information~

⠀⠀⠀★1 km= 1000 m =0.6214 mile

⠀⠀⠀★1 mile = 1.609 km

⠀⠀⠀★1 hr = 60 min = 60 × 60=3600 sec

⠀⠀⠀★1 km/hr = 5/18 m/s

⠀⠀⠀★1 m/sec = 18/5 km/hr

⠀⠀⠀★1 km/hr = 5/18 mile/ hr

⠀⠀⠀★1 yard = 3 feet