A) Rs.561
B) Rs.560
C) Rs.550
D) Rs.525
Correct Answer: A
Solution :
\[C.{{P}_{Sneha}}=\,Rs.\,\,480\] \[C.{{P}_{Neha}}=\,S.{{P}_{Sneha}}\] \[=\frac{\left( 100+6\frac{1}{4} \right)}{100}\times Rs.\,\,480\] \[=Rs.\,\,510\] \[C.{{P}_{Devi}}=S.{{P}_{Neha}}\] \[=\frac{(100+10)}{100}\times 510=Rs.\,\,561\] \[\therefore \] Devi had to pay \[Rs.\,\,561\]
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