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6 oxen or 8 cow can graze a field in 28 days. how long would 9 Oxygen and 2 cows take to graze the same field

Posted by Vaibhav Maurya 6 years, 5 months ago

CBSE > Class 08 > Mathematics

1 answers

Yogita Ingle 6 years, 5 months ago

6 oxen = 8 cows
⇒ 1 ox = 8/6 cows
⇒ 9 oxen ≡ (8/6 × 9) cows = 12 cows
⇒ (9 oxen + 2 cows) ≡ (12 cows + 2 cows) = 14 cows
Now, 8 cows can graze the field in 28 days
1 cow can graze the field in (28 × 8) days [less cows, more days]
14 cows can graze the field in (28 × 8)/14 days
[more cows, less days]

= 16 days
Hence, 9 oxen and 2 cows can graze the field in 16 days.

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CBSE > Class 08 > Mathematics