Question

Kate school is $30$ $\mathrm{Km}$ far from his house . He covers $12$ $\mathrm{Km}$ $200$ $\mathrm{m}$ distance by bus $15$ $\mathrm{Km}$ $700$ $\mathrm{m}$ distance by car and remaining by foot . How much distance does he cover on foot

Answer 1

Step 1 Collect all data from question and find the distance travelled by bus and car

Total distance $=$$30$ $\mathrm{Km}$

Distance covered by bus $=$ $12$ $\mathrm{Km}$ $200$ $\mathrm{m}$

Distance covered by car $=$ $15$ $\mathrm{Km}$ $700$ $\mathrm{m}$

Distance covered by bus $+$Distance covered by car $=$ $($ $12$ $\mathrm{Km}$ $200$ $\mathrm{m}$ $+$ $15$ $\mathrm{Km}$ $700$ $\mathrm{m}$ $)$

$=$ $($ $27$ $\mathrm{Km}$ $900$ $\mathrm{m}$ $)$

Step 2 Calculate distance covered on foot

Distance covered on foot $=$ Total distance $-$ $($ Distance covered by bus $+$Distance covered by car $)$

$=$ $30$ $\mathrm{Km}$ $-$ $($ $27$ $\mathrm{Km}$ $900$ $\mathrm{m}$ $)$

$=$ $\mathrm{Km}$ $\mathrm{m}$

$30$ $000$

$27$ $900$

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$2$ $100$
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Hence , distance covered on foot is $2\mathrm{Km}100$$\mathrm{m}$