Question

aman has to purchase a gift for his sister's birthday.he opens his piggy bank and finds that there were a total of 53 notes in the piggy bank amounting to rs 710. If there were only rs 10 and rs 20 notes in it , find the number of notes of each type​

Answer 1

Answer:

LET THE NO OF 10 RUPESS NOTE BE =X

AND THE NO OF 20 RUPESS NOTE BE = Y

Step-by-step explanation:

ATQ TOTAL NO OF NOTES = 53

X + Y = 53

AND ALSO TOTAL SUM IS 710

SO 10 X +. 20Y = 710

TO FIND ANSWER WE WILL USE ELEMINATION METHOD

so

X + Y = 53

10X + 20 Y = 710

MULTIPLY EQ 1 BY 10

10X + 10Y = 530

10X + 20Y = 710

- 10 Y = - 180

y = 18

put the value in eq 2

10X + 20(18) = 710

10X + 360 = 710

10 x = 350

x = 35

SO THERE ARE 35 TEN RUPEES NOTE

AND 18 TWENTY RUPEES NOTE

PLEASE MARK AS BRAINLIEST

Answer 2

Answer:

answer for the given problem is given