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Question
12 cows can graze a field for 10 days. 20 cows can graze the same field for _______ days
Options
15
18
6
8
Solution
6
Explanation;
Hint:
| Cows | Days |
| 12 | 10 |
| 20 | x |
12 × 10 = 20 × x, x = `(12 xx 10)/20`
= 6
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