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QUESTION
Q
The population of a city increases at the rate of 4% per annum. There is an additional annual increase of 1% in the...

Solution

Let, the population of the city be = NTotal % increase per annum = 4 + 1 = 5%Population at the end of first year = (1.05)NPopulation at...

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Solution

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Let the population of the city be = 100At the end of second year = (1.05)2 × 100 = 110.25Change in population =...

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The ratio of monthly incomes of A, B is 6 : 5 and their monthly expenditures are in the ratio 4 : 3. If each of them saves Rs.400 per…

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