A house of height 100 metres subtends a right angle at the window of an opposite house. If the height of the window is 64 metres, then the distance between the two houses is
Watch SolutionAt a point on a horizontal line through the base of a monument, the angle of elevation of the top of the monument is found to be such that its tangent is 1/5 . On walking 138 meters towards the monument the secant of the angle of elevation is found to be √193/12. The height of the monument (in metre) is
Watch SolutionA person borrows Rs 4000 from a bank at 7 ½% per annum compound interest, compounded annually. At the end of every year, he pays Rs 1500 as part of the repayment of loan & interest. How much does he still owe to the bank after 3 such installments?
Watch SolutionFind the annual installment that will discharge a debt of Rs 12900 due in 4 years at 5% per annum simple interest.
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