21 goats eat as much as 15 cows. How many goats each as much as 35 cows?
Options:
A) 49	B) 32	C) 36	D) 41	E) 42
Explanation :   15 cows ≡ 21 goats   1 cow ≡21/15 goats   35 cows ≡ (21×35)/15 goats ≡ (21×7/3) goats ≡ 7 × 7 goats ≡ 49 goats. 49nswer : Option 49
<result>A</result>
21 goats eat as much as 15 cows. How many goats each as much as 35 cows?