Question

13. A sum of 800 is in the form of denominations of 10 and 20. If the total number of
notes is 50, find the number of notes of each type.​

Answer 1

Answer:

20 and 30

Step-by-step explanation:

Let the number of notes of Rs. 10 be x

Total number of notes = 50

So, number of notes of Rs. 20 = 50 - x

So, 10 x + 20 (50 - x) = 800

=> 10 x + 1000 - 20 x = 800

=> 1000 - 800 = 10 x

=> x = 20

Number of notes of Rs. 10 = 20

Number of notes of Rs. 20 = 50 - x = 50 - 20 = 30

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Answer 2

Answer:

₹10 and ₹20 notes are 20 and 30 respectively

Step-by-step explanation:

Explanation in the attachment