Three persons A, B and C have different amounts of rupees with them. If A takes ₹12 from C, A will have equal amount as B has. A and B together have total ₹102. How many rupees does A have ?
A+12=B........Eq1
A+B=102
=> B=102-A ......Eq2
putting the value of Eq2 in Eq1
A+12=102-A
2A=102-12
2A=90
A=45
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