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CBSE Class 8 Answered

the sum of rupees 800 is in the form of denomination rupees 10 and 20.If the total number of note is 50.Find the number of notes of each type.  
Asked by arihanth00 | 18 Sep, 2019, 07:50: PM
answered-by-expert Expert Answer
Let the numbers of 10 rupees notes = x
numbers of 20 rupees notes = 50 - x
 
According to the condition, we get
 
10x + 20(50 - x) = 800
→ 10x - 20x + 1000 = 800
→  -10x = -200
→       x = 20 = numbers of 10 rupees notes 
 
numbers of 20 rupees notes = 50 - x = 50 - 20 = 30

Answered by Yasmeen Khan | 19 Sep, 2019, 09:55: AM

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