srishti has a total of rs 780 as currency notes in the denomination of rs 10, rs20 rs50. the ratio of the number of rs 50 notes and rs 10 notes is3:2. if she has a total of 32 notes,how many notes of each denomination she has
Answers
Given : srishti has a total of rs 780 as currency notes in the denomination of rs 10, rs20 rs50. the ratio of the number of rs 50 notes and rs 10 notes is3:2. She has a total of 32 notes
To find : how many notes of each denomination she has
Solution:
ratio of the number of rs 50 notes and rs 10 notes is 3:2
Let sat Rs 50 notes = 3x
& rs 10 notes = 2x
Rs 20 notes = 32 - 3x - 2x = 32 - 5x
Values
= 10 * 2x + 20 *(32 - 5x) + 50*3x = 780
=> 2x + 2(32 - 5x) + 5*3x = 78
=> 2x + 64 - 10x + 15x = 78
=> 7x = 14
=> x = 2
Rs 50 notes = 3 * 2 = 6
Rs 10 notes = 2*2 = 4
Rs 20 notes = 32 - 5*2 = 22
Rs 50 notes = 6 , Rs 10 notes 4 , Rs 20 notes = 22
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Step-by-step explanation:
rs 50 = 6 ,rs 20 =22 ,rs 10 = 4