If exactly $3.90 was spent on some 24 cent and some 18 cent stamps, how many of each are there?
Note: There is more than one answer
2 times 24 cent and 19 times 18 cent 5 times 24 cent and 15 times 18 cent 8 x 24 + 11 x 18 11 x 24 + 7 x 18 14 x 24 + 3 x 18
In a party there are 24 persons present. If each of them shakes hand with all the other persons, in total how many handshakes will takes place?
Out of 21 persons, expenditure of 18 persons is Rs. 120 each for their lunch and remaining 3 spent Rs. 30 more than the average expenditure of all the 21. What was the total money spent by all of them?
