What is the value of 64% of 75% of 8100?
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Factorise 24x2 - 54x - 15
If 13x2 = 172 - 92, find the value of x?
A taxi going at 90 km/hr takes 35 minutes to travel a certain distance. By how much should it increase its speed (in km/hr) to travel the same distance in 21 minutes?
Sum of three consecutive integers is 51 . The middle one is:
What should be the missing digit so that the number 347_547 becomes exactly divisible by 11?
What is the value of 5.6x0.36+0.42x3.20.8 x 2.1 ?
If 2r = h + r2+h2, then the ratio of r:h is