The most challenging subject to most people yet interesting to a few and needed in life is math. In my opinion, math concept is different from math skill. A math concept is if a person knows how...Read More
Some people become confused with the differences between chickenpox and shingles because they are caused by the same virus. Even so, the effect they will have on people will be different. Those...Read More
Each statement alone is sufficient- (ans: (d) area of the circle = pi (r^2), where r is the radius of circle.
take (1), length of arc = 2 pi r (angle subtended by the arc) / 360
or 5 = 2 pi r...Read More
There are four quarts in a gallon. To convert quarts to gallons, you must multiply the gallon value by four. For example, to find out how many quarts are in two and a half gallons, multiply...Read More
The value of pi was likely first approximated by the ancient Babylonians. One Babylonian tablet estimated to be from around 1680 BC, provided a value for pi of 3.125. The Egyptians, a few year...Read More
Each statement alone is sufficient-(ans: (d) , x + y will be odd when one of x & y is even and other is odd. if both are even or odd then x + y will be even.
take (1), x = y, this means that both x...Read More
Difficulty: Medium One way to do this problem is to think about the properties of roots. Suppose the two roots of a quadratic equation are a and b. Then the quadratic equation can be written in...Read More