A sum when reckoned at 7.5% per annum amounts to ₹3920 in 3 years. Find the sum.
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Answer:
100 rupees ( Principal) + 22.5 rupees (7.5 X 3 years)
= 122.5 rupees
But here as the problem states that after 3 years the amount is 3920 rupees.
So 122.5 unit = 3920 rupees
So 1 in unit = (3920/122.5)
1 unit = 32 rupees
So 100 unit ( which a lent initially to my friend) is equal to
= 100 X 32 = 3200 rupees
Step-by-step explanation:
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