(3) To find number of notes that Anushka had, complete the following a

1.	(3) To find number of notes that Anushka had, complete the following activitySuppose that Anushka hadnotes ofて10 andnotes of? 50 eachgot 2500/- from Anand If Anand would have given her theas denominations mentioned above amount by interchanging number cnotes, Лnushka would have receivedequationIThe No. of notes500 less than the previous amountequation Il
Answer» GIVEN THAT:- x notes of 10 Rs.y notes of 50 Rs. AND the sum is 2500 Rs. NOW, 10x + 50y = 2500 -------------(1) 50x + 10y = 2000 ------------(2) adding-----(1) & ------(2) we get, 50x + 10y = 200010x + 50y = 2500--------------------------60x + 60y = 4500 2X + 2y = 150---------(3) subtracting-----(1) & -----(2) 50x + 10y = 200010x + 50y = 2500(-)____(-)____(-)---------------------------40x - 40y = -500 2X - 2y = - 25----------(4) From-----(1) & -----(2) 2x + 2y = 1502x - 2y = -25-------------------4x = 125 X = 125/4 X = 30.9 put in -----(3) We get, 2(30.9) + 2y = 150 2y = 150 - 62.5 2y = 87.5 Y = 87.5/2 Y = 43.75 anushka has 20 notes of rupees 100 and 10 notes of rupees 50

(3) To find number of notes that Anushka had, complete the following activitySuppose that Anushka hadnotes ofて10 andnotes of? 50 eachgot 2500/- from Anand If Anand would have given her theas denominations mentioned above amount by interchanging number cnotes, Лnushka would have receivedequationIThe No. of notes500 less than the previous amountequation Il

Answer»

GIVEN THAT:-

x notes of 10 Rs.y notes of 50 Rs. AND the sum is 2500 Rs.

NOW,

10x + 50y = 2500 -------------(1) 50x + 10y = 2000 ------------(2)

adding-----(1) & ------(2)

we get,

50x + 10y = 200010x + 50y = 2500--------------------------60x + 60y = 4500

2X + 2y = 150---------(3)

subtracting-----(1) & -----(2)

50x + 10y = 200010x + 50y = 2500(-)____(-)____(-)---------------------------40x - 40y = -500

2X - 2y = - 25----------(4)

From-----(1) & -----(2)

2x + 2y = 1502x - 2y = -25-------------------4x = 125

X = 125/4

X = 30.9 put in -----(3)

We get,

2(30.9) + 2y = 150

2y = 150 - 62.5

2y = 87.5

Y = 87.5/2

Y = 43.75

anushka has 20 notes of rupees 100 and 10 notes of rupees 50