A bag contains notes of Rs.10, Rs.20, and Rs.50 in the ratio of 1:3:5. If the total value of money in the bag is Rs.1920, find the number of Rs.20 notes.
let the notes of Rs 10, 20 and So be a, 3a and 5a respectively Total money in bag = 1920 Acording to question : 10 x a + 20 x 3a + 50 x 5a = 1920 320a = 1920 a = 6 No of Rs 20 notes = 6 x 3 = 18
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