at what rate percent will a sum of rupees 640 be compounded to rupees 774.40 in 2 years
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Step-by-step explanation:
774.40=640(1+r/100)²
774.40=640(1+r/100)²774.40/640=(1+r/100)²
774.40=640(1+r/100)²774.40/640=(1+r/100)²(1.1)²=(1+r/100)²
774.40=640(1+r/100)²774.40/640=(1+r/100)²(1.1)²=(1+r/100)²1.1=1+r/100
774.40=640(1+r/100)²774.40/640=(1+r/100)²(1.1)²=(1+r/100)²1.1=1+r/100r/100=1.1-1
774.40=640(1+r/100)²774.40/640=(1+r/100)²(1.1)²=(1+r/100)²1.1=1+r/100r/100=1.1-1r/100=0.1
774.40=640(1+r/100)²774.40/640=(1+r/100)²(1.1)²=(1+r/100)²1.1=1+r/100r/100=1.1-1r/100=0.1r=0.1*100
774.40=640(1+r/100)²774.40/640=(1+r/100)²(1.1)²=(1+r/100)²1.1=1+r/100r/100=1.1-1r/100=0.1r=0.1*100r=10%pa
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