The total of 324 of 20 paise and 25 paise make a sum of Rs. 70. The no of 20 paise coins is  Select:
A) 238  B) 277  C) 220  D) 200  E) 288
Explanation:   Let the number of 20 paise coins be x. Then the no of 25 paise coins = (324 - x).   0.20 * (x) + 0.25 (324 - x) = 70 =&gt; x = 220..   Answer: 220) 220
<result>C</result>
The total of 324 of 20 paise and 25 paise make a sum of Rs. 70. The no of 20 paise coins is