mayuri has a total of ₹ 138000 as currency notes in the denomination of ₹100, ₹50 and ₹20. The ratio of the number of ₹100, ₹50 and ₹20 notes is 5:3:2. How many notes of each denomination she has?
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Step-by-step explanation:
The ratio of the number of ₹100, ₹50 and ₹20 notes is 5:3:2
In 50rs ,we can written as 1/2,20rs as 1/5
5x+ (3x/2)+(2x/5) = 138000
50x + 15x + 4x = 1380000
69x = 1380000
x = 20000
amnt in 100rs note = 5x = 5*20000 = 100000
amnt in 50rs note = 3x/2 = (3* 20000)/2= 30000
amnt in 20 rs note = 2x/5 = (2* 20000)/5 = 8000
- total number of 100rs note = 100000/100 = 1000notes
- total number of 50 rs note = 30000/50= 600 notes
- total number of 20 rs note = 8000/20 = 400
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