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There are three numbers 'a', 'b' and 'c' (a < b < c) such that 'b' is equal to the average of 'a' and 'c'. 70% of 'c' is equal to 'a' and the difference...
A positive number, when 15 is added to it, becomes 50 times its reciprocal. Find this positive number.
How many numbers between 150 and 600 are divisible by both 5 and 7?
In a particular examination, Cheenu achieved 48% of the total marks and fell short by 72 marks to pass. On the other hand, Meenu obtained 68% of the tot...
What is the average of first 26 multiples of 2.6?
Find the last digit of (12123 – 1).
If X + Y = 23 and XY = 126, what is the value of (X)² + (Y)² ?