Question

Aman has to purchase a gift for his sister's birthday he open his piggy bank and find that there where a total of 53 note in a piggy bank amount into Rupees 710 if there were only rupees 10 and rupees 20 note in it find the number of notes of each type​

Answer 1

Answer:

Number of Rs. 10 notes = 35.

Number of Rs. 20 notes = 18

Step-by-step explanation:

Let X and Y be the number of Rs.10 and Rs.20 notes.

//Total number of notes = 53, so

X + Y = 53

//total cost of Rs. 10 and Rs. 20 notes = Rs. 710, so

10X + 20Y = 710

Solve both equations by subtraction

10X + 20Y = 710

10X + 10Y = 530

-----------------------

10Y = 180.

Y = 18.

X = 35.

Number of Rs. 10 notes = 35.

Number of Rs. 20 notes = 18

Answer 2

Step-by-step explanation: