Question

Rajdhani express moves at a speed of 120 km/h . How long it will take to cover a distance of 15 km ?​

Answer 1

Distance = Speed * Time
15 km = 120 km/hr * Time
Time = 15/120
Time = 0.125 hr

Or in minutes
Time = 0.125 * 60
Time = 7.5 minutes

Answer 2

ɢɪᴠᴇɴ :-

• Speed (s) = 120 km/h

• Distance (d) = 15 km

ᴛᴏ ғɪɴᴅ :-

• Time (t)

Sᴏʟᴜᴛɪᴏɴ :-

We know that,

➭ Distance = Speed × Time

➭D = s × t

Put the above given values in it, we get,

➭ 15 = 120 × t

➭ t = 15/120

➭ t = 1/8 hr

We know that,

➭ 1 hour = 3600 s

So,

➭ 1/8 hrs = 1/8 × 3600

➭ 3600/8

➭ 450 s

Hence,

• Time taken (t) = 450 seconds or 7.5 min