The population of a village decreases at the rate of 20% per annum. If its population 2 years ago was 10000, what is its present population?
6000
10000/144
6400
7600
Additional Questions
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A certain sum of money at simple interest becomes Rs. 1062 in 2 years and Rs. 1183.50 in 3½ years. What is rate of interest per annum? |
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If the simple interest on a sum at 4% per annum for 2 years is Rs. 80, then the compound interest on the same sum for the same period is: |
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A man covers a distance of 1200 km in 70 days resting 9 hours a day, if he rests 10 hours a day and walks with speed 1½ times of the previous in how many days will he cover 750 km? |
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A train leaves Delhi at 6.00 a.m. and reaches Agra at 10.00 a.m. Another train leaves Agra at 8.00 a.m. and reaches Delhi at 11.30 a.m. At what time do the two trains cross each other if the distance between Delhi and Agra is 200 km? |
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How many litres of a 90% solution of concentrated acid needs to be mixed with a 75% solution of concentrated acid to get a 30 L solution of 78% concentrated acid? |
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If x is a positive number and y = x2, then which of the following is true? |
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Rajiv has a number x in his mind. He finds out that the square of x is less than x. What is the range of x? |
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What is the value of: x1.5 * x2 ? |
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What is the value of: (33*812*20)/95 ? |
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What number should be divided by (0.81)1/2 to give the result as 81? |
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