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Real Numbers
Maths and Fun together
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1 year ago
This question is related to the topic of Real Numbers
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📚
Learning
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00:00
This is question number 2 of exercise 1.1 and the chapter is Real Numbers.
00:07
This question is taken from the new book that is for grade 9.
00:11
In this question, last week Vajat drove 283.4 km on 16.2 litres of petrol, means ki Vajat
00:22
ne pichle hafte gadi chalai 283.4 km aur jab petrol usne consume kiya that was 16.2 litres.
00:32
He says that he averaged about 1.75 km per litre.
00:38
Vajat ka kehna hai average means ke agar hum ek kilometre ke nihaas se malom karein to
00:46
usne 1.75 ke average nikali.
00:49
Is this answer reasonable?
00:52
Humne basically yeh check karna hai ke woh jo keh raha hai woh sahi hai uska answer ya
00:56
nahi hai.
00:57
First of all, you will make some statements.
01:00
Aap easy aur choti se statements banayenge.
01:05
Distance travelled, Vajat ne jo distance travelled kiya that is 283.4 km.
01:18
Now consumed, now averaged, calculated by Vajat, yeh woh average hai jo Vajat keh raha
01:44
hai.
01:49
This is 1.75 km per litre.
01:56
Ab hum average calculate karenge, average ka formula kya hota hai, average ka formula
02:01
yaha pe hota hai, distance covered divided by petrol consumed, kaise kilometre se hume
02:15
distance milega aur per litre hai to hum niche kis cheez se divide karenge ki kitna
02:20
petrol consumed hua.
02:28
Distance travelled is 283.4 and petrol consumed is 16.2.
02:37
Agar aap in dono numbers ko divide karenge to aapke paas answer aa raha hai 17.49 km
02:46
per litre.
02:48
Ab 17.49 aur 1.75 me bahut huge difference hai.
02:54
Iska matlab hai jo Vajat ne average calculate ki hai wo theek nahi hai to Vajat ka jo answer
03:02
hai wo reasonable nahi hoga.
03:04
Aap last mein statement doge, no Vajat's average is not reasonable.
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