units digit in expansion os 2 raised to 51 is:
2 4 6 8
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the minimum of (2x+1)**2 + (x+2) is at x =
A sum of money becomes 2.5 times itself at 12.5% simple interest p.a. What should be the period of investment to get this much return?
There are 150 weights .Some are 1 kg weights and some are 2 kg weights. The sum of the weights is 260.What is the number of 1kg weights?
What is the smallest number by which 4880 must be divided in order to make it into a perfect square ?
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There are 3 societies A, B, C.A lent cars to B and C as many as they had already.After some time B gave as many tractors to A and C as many as they have. After sometime c did the same thing. At the end of this transaction each one of them had 24.Find the cars each originally had.
In the given quadratic equation, mx2+nx+o=0 .If the ratio of the sum of the roots and the product of roots is 2:7, what can be possible values of b and c?
One Train Travels 200m From A To B With 70 Km/Ph And Returns To A With 80kmph, What Is The Average Of Their Speed?
Two trains in the same direction at 50 & 32 kmph respectively. A man in the slower train observes the 15 seconds elapse before the faster train completely passes him. What is the length of faster train ?
0.512 * 18902358 =?
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The average of x and y is 6.5. if z=4,what is the average of x,y,z.
15 Men take 21 days of 8 hrs. each to do a piece of work. How many days of 6 hrs. each would do if 21 women take. If 3 women do as much work of 2 men.
The area of the maximum size of the circle described from the 10 square inch square?
In a certain college, 20% of the boys and 40% of the girls attended the annual college outing. If 35% of all the students are boys, what percent of all the employees went to the outing?