The digits of a positive integer, are in A.P. and their sum is 15. The number obtained by reversing the digits is 594 less than the original number. Find the number.
Linear and Non-linear Equations In the month of February, Meeta paid Rs. 620 for 5 kg oil and 2 kg “ghee”. In next month she found that price of oil is increased by 10% and of Ghee by 5%, which increase her total expanses on the same amount of oil and ghee by Rs. 46 What was the original price of oil?
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Linear and Non-linear Equations A thermometer shows temperature in degree Celsius as well as in degree Fahrenheit. The relation between both temperature is given by F = (9/5) C + 32. What would be the temperature in degree Fahrenheit for 30oC?
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If one root of the quadratic equation x^2 – 7𝓍 + k = 0 is 4, then find the value of k.
Statistics – Mode involving Integers
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