A) 24,24
B) 25,25
C) 26,26
D) None of these
Correct Answer: B
Solution :
Let the number of Rs 1 coins = x |
and the number of Rs 2 coins = y |
Then, by given condition, |
\[x\text{ }+\text{ }y\text{ }=\text{ }50\] ...(i) |
and \[x\times 1+y\times 2=75\] |
\[\Rightarrow \,\,\,x+2y=75\] ...(ii) |
On subtracting Eq. (i) from Eq. (ii), we get |
\[\left( x+2y \right)-\left( x+y \right)=75-50\Rightarrow y=25\] |
On substituting y = 25 in Eq. (i), we get |
\[x+25=50\Rightarrow x=25\] |
Hence, she has 25 coins of Rs 1 and 25 coins of Rs 2. |
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