a money lender charges interest at the rate of 5 rupees per 100 rupees payable in advance per quarter.what effective rate of interest does he charge per annum ?
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Answer:
50
Step-by-step explanation:
angle 1 +angle 2 =130 (exterior angle property)
angle 1 +angle 2 +angle x =180 (a.s.p)
angle x=50
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