at simple interest a sum become 6/5 of itself in 2 1/2 years .Find rate
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sorry I haven't the answer sorry alot sorry
munidavi2727:
bhag mc
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Let the required sum be ₹ x
Rate of interest = r %
Time = 2½ years = 5/2 years
Amount = (6/5) × sum
Amount = principal + SI
(6/5) × x = x + [(P × R × T)/100]
= (6/5) x = x + [(x × r × 5)/ (100 × 2)]
= (6/5) = (1 + (r/40))
= r = (40 × (1/5))
= r = 8%
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