Find the number of coins of each type?

Question

A bag contains 50 paise, 25 paise and 10 paise coins of the ratio 5 : 9 : 4, amounting to Rs . 206. Find the number of coins of each type respectively?

Answer 1

200 x 50 paise, 360 x 25 paise and 160 x 10 paise.
.
The bag contains sets of 5 x 50 paise, 9 x 25 paise and 4 x 10 paise, totalling 515 paise.
40 of these sets make (40 x 5.15 =) 206 Rs.
Thus the bag contains 5x40 50 paise, 9x40 25 paise and 4x40 10 paise