Cow and Hen

Tests
Test 1     Test 2     Test 3     Test 4     Test 5     Test 6     Test 7     Test 8     Test 9     Test 10

Sample
Cow and Hen [Test 1]
 1) There are 314 cows and hens in a farm. Total number of legs in the farm is 966. How cows are in there?
 2) There are 358 cows and hens in a farm. Total number of legs in the farm is 1198. How cows are in there?
 3) There are 344 cows and hens in a farm. Total number of legs in the farm is 1012. How cows are in there?
 4) There are 280 cows and hens in a farm. Total number of legs in the farm is 916. How cows are in there?
 5) There are 362 cows and hens in a farm. Total number of legs in the farm is 958. How cows are in there?
 6) There are 324 cows and hens in a farm. Total number of legs in the farm is 952. How cows are in there?
 7) There are 357 cows and hens in a farm. Total number of legs in the farm is 1028. How cows are in there?
 8) There are 265 cows and hens in a farm. Total number of legs in the farm is 814. How cows are in there?
 9) There are 376 cows and hens in a farm. Total number of legs in the farm is 1234. How cows are in there?
 10) There are 346 cows and hens in a farm. Total number of legs in the farm is 1028. How cows are in there?