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Question

Answer

Cows has 4 legs and Ducks has 2 legs. If there are 3u Cows, there are u Ducks.

3u * 4 –  2u = 100

10u = 100

u = 10

So there are 30 cows in the farm.

Check 30 * 4 = 120

10 * 2 = 20 

120 -20 = 100

0 Replies 2 Likes ✔Accepted Answer