Question
The population of a city is decreased by 14% in the
first year and then increased by 25% in the second year. Find the population of the city at the end of the second year, if two years ago the population was 16,000.Solution
Required population = 16000 × 0.86 × 1.25 = 17200
Calculate the volume of a sphere whose diameter measures 21 cm. (Take π = 22/7)
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