15 people went to a hotel for combine dinner party 10 of them spent Rs. 50 each on their dinner and rest spent 4 more than the average expenditure of all the 15. What was the total money spent by them.	Pick:
A) 1628.4 B) 1534 C) 780 D) 1496 E) None of these
Solution: Let average expenditure of 15 people be x.   then,   15x = 10*50+5*(x+4);   Or, 15x = 10*50+5x+20;   Or, x = 52;   So, total money spent = 52*15 = Rs. 780.   Answer: Option 780
<result>C</result>
15 people went to a hotel for combine dinner party 10 of them spent Rs. 50 each on their dinner and rest spent 4 more than the average expenditure of all the 15. What was the total money spent by them.