Bhanu deposits ₹5000 at 9% per annum for 3 years with the interest compounded annually. Determine the compound interest received at the end of 3rd year.
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6
Answer:
The amount accrued after there years = Rs. 5000x(1.08)x(1.10)x(1.12)
= Rs.6652.80
Therefore the Compound interest for 3- years =Rs. (6652.80- 5000.00) =
Rs.1652.80
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Let x be the base of the triangle, then the altitude will be (x−7).
By Pythagoras theorem,
x2+(x−7)2=(13)2
2x2−14x+49−169=0
2x2−14x−120=0
x2−7x−60=0
x2−12x+5x−60=0
(x−12)(x+5)=0
x=12,x=−5
Since the side of the triangle cannot be negative, so the base of the triangle is 12cm and the altitude of the triangle will be 12−7=5cm.
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