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K + 3 = N P – 3 = M U + 3= X W – 3 = T Similarly, D + 3 = G Q – 3 = N G + 3= J J – 3 = G
A sum triples itself in 8 years at simple interest. Find the rate of interest per annum is.
What will be the differnce between SI & CI on Rs. 5000 for 3 years at rate of 20% per annum ?