$12.5=\dfrac{CP-SP}{CP}\times 100\ \ \ \ \ .........(1)$
$10=\dfrac{(SP+108)-CP}{CP}\times 100\ \ \ \ \ ........(2)$
From $(1)$
$SP=CP-\dfrac{12.5\ CP}{100}$
Put the value of $SP$ in $(2)$
$\dfrac{10\ CP}{100}=CP-\dfrac{12.5\ CP}{100}+108-CP$
$CP=480$
Put the value of $CP$ in $(1)$
$SP=420$
Loss in rupees incurred by fruit seller$=60$