Question

plz solve in a sheet ​

Answer 1

Step-by-step explanation:

let she has 3x notes of 50 rs then

she has 5x notes of 20 rs

as she has total 25 notes so

10 rs notes + 20 rs notes + 50 rs notes = 25

10 rs notes + 5x + 3x = 25

10 rs notes = 25-8x

now

money from 10 rs note = 10* ( 25-8x) = 250-80x

money from 20 rs notes = 20*5x = 100x

money from 50 rs notes = 50*3x= 150 x

total money = 250-80x + 100x +150 x = 590

250+170x = 590

170 x = 340

x = 2

so she has 10 rs notes = 25-8*2 = 9 notes

20 rs notes = 5x= 10 notes

50 rs notes = 3*2 = 6 notes

Answer 2

Step-by-step explanation:

Given Aarushishi has 590 Rupees

RS50,20&10 are there ⇒ Total 25 notes

Rs50&Rs20 ⇒3:5

Notes of Rs50=3x

Notes of Rs20=5x

Notes of Rs10=25−(3x+5x)=25−8x.

Amount in 50 Rupee notes ⇒50×3x=150x

Amount in 20 Rupee notes ⇒20×5x=100x.

Amount in 10 Rupee notes ⇒10(25−8x)=250−80x

Total Amount =590

⇒150x+100x+250−80x=590

⇒250−80x=590−250

⇒170x=340

∴x=2

So Aarushi has

Notes of Rs.50=3(2)=6i.e;150(2)=300Rs.

Notes of Rs.20=5(2)=10i.e;100(2)=200Rs.

Notes of Rs.10=25−8(2)=9i.e;=90Rs

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