For this case we can make the following rule of three:
9 1/2 m --------------> 28 1/2 rupees
26 1/3 m -------------> x
From here, we clear the value of x.
We have then:
[tex] x = (\frac{26+\frac{1}{3}}{9+\frac{1}{2}}) (28+\frac{1}{2}) [/tex]
Rewriting we have:
[tex] x = (\frac{\frac{79}{3}}{\frac{19}{2}}) (\frac{57}{2}) [/tex]
[tex] x = (\frac{158}{57}) (\frac{57}{2}) [/tex]
[tex] x = \frac{158}{2} [/tex]
[tex] x = 79 [/tex]
Answer:
samruth should pay 79 rupees to the shopkeeper