1
Question
Meena went to a bank to withdraw Rs 2000. She asked the cashier to give her Rs 50 and Rs 100 notes only. Meena got 25 notes in all. Find how many notes Rs 50 and Rs 100 she received.
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Solution
Let 
be the notes of 
and 
notes will be 
If Meena ask for 
and 
notes only, then the equation will be,
Divide both sides by 
then we get,
If Meena got 25 notes in all then the equation will be,
By subtracting the equation 
from 
we get,
Substituting 
in equation, we get
Therefore 
and
Hence, Meena has 
notes of and 
notes of
Let be the notes of and notes will be
If Meena ask for and notes only, then the equation will be,
Divide both sides by then we get,
If Meena got 25 notes in all then the equation will be,
By subtracting the equation from we get,
Substituting in equation, we get
Therefore and
Hence, Meena has notes of and notes of
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