Question

If jack walks at 15 km/hr instead of 12 km/hr, he would have walked 30 km more. the actual distance traveled by him is:

Answer 1

$\textbf {Hey there, here is the solution.}$

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Let the time taken be x hour

Find the distance covered at the speed 15 km/hr

Distance = 15x km

Find the distance covered at the speed of 12km/h

Distance = 12x km

Find the number of hours:

Given that their difference in speed is 30km

15x - 12x = 30

3x = 30

x = 3 hours

Find the actual distance

Distance = speed x time

Distance = 12 x 3 = 36km

Answer: He has walked 36 km

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⭐$\textbf {Cheers}$⭐

Answer 2

ʜᴇʏᴀ...@ᴜsᴇʀ... ᴛʜᴀɴᴋs ғᴏʀ ᴀsᴋɪɴɢ ғᴏʀ ᴛʜᴇ 
ϙᴜᴇsᴛɪᴏɴ

so let the time taken be x hours...

#1st case...

ƒเɳ∂  ƭɦε   ∂เรƭαɳ૮ε  ƭ૨αѵεℓℓε∂  αƭ ƭɦε รρεε∂  σƒ  1⃣5⃣ ҡɱ/ɦ૨

so distance will be 15xkm/hr

#2nd case

ƒเɳ∂ ƭɦε ∂เรƭαɳ૮ε ƭ૨αѵεℓℓε∂ αƭ ƭɦε รρεε∂ σƒ 1⃣6⃣ ҡɱ/ɦ૨

distance =12xkm

#3rd case

ғɪɴᴅ ᴛʜᴇ ɴᴜᴍʙᴇʀ ᴏғ ʜᴏᴜʀs:

as it is given in the question that difference between the speed in case 1 and case two is 30km

so we arrive at the following equation

i.e =>
$15x - 12x = 30 \\ now....3x = 30 \\ x = 3hrs$
➡now we can find out the actual distance covered ...and
that will be:

$distance \: = time \times speed \\ therefore \: ..... \\ distance = 12 \times 3 \\ = 36km$
so finally we got the answer...

ANSWER>>> he has walked 36km.

✿✿hope it helps you.

◉✿✿◉ with regards...

.•♫•♬•[ ms rockstar ].•♫•♬•