A 600 metres long train is running at the speed of 81 km/hr. If it crosses a platform in 40 seconds, then what is the length of the platform (in metres)?
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The number of students in a class is increased by 20% and the number now becomes 66. Initially the number was
Select the odd number from the given alternatives.
9997 x 10003 = ?
The length of one side and the diagonal of a rectangle are 20 cm and 29 cm respectively. Find the length of its other side (in cm).
Find a two digit number which is exactly three times the product of its digits?
A = (x8 – 1)/(x4 + 1) and B = (y4 – 1)/(y2 + 1). If x = 2 and y = 9, then what is the value ofA2 + 2AB + AB2?
The mean of distribution is 11 and the standard deviation is 5. What is the value of the coefficient variation?
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