Question

shubhangi has twice as many 20 rupee notes as she has 50 rupee notes. Altogether, she has 2700 rupees. how many 50 rupee notes does she have ?

Answer 1

First,
50 Rs note be x
20Rs note be 2x
ATQ
(50×x)+(20×2x)=2700 Rs
50x+40x=2700
90x=2700
x=2700/90
x=30
Therefore x=30

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Answer 2

Answer:

30 notes

Step-by-step explanation:

Let x be the number of notes of 50 rupee

Since we are given that shubhangi has twice as many 20 rupee notes as she has 50 rupee notes.

So, 2 x is the number of notes of 20 rupee.

We are given that Altogether, she has 2700 rupees

So, A.T.Q

$50x+20(2x)=2700$

$50x+40x=2700$

$90x=2700$

$x=\frac{2700}{90}$

$x=30$

Thus she has 30 notes of 50 rupees.