The question says that the wire was divided into three equal parts which in turn were divided into 4,6 and 8 parts respectively. Now,can i say that each part after first division(after the original wire was cut) is divisible by 4,6 and 8. Therefore to find the minimum length of the original wire...w...

Probability is stated as the ratio of the number of favourable cases to the total number of cases. Here's a formula which u guys might find useful. Here i am stating the formula in the context of a problem. Suppose 'n' persons go to a bar with each having an umbrella with a mark on it so that each c...

I have a question if anyone can plz help. Why four cases instead of 2? Why O+E+E,E+O+E and E+E+O instead of just one of the three? "Three balls are selected at random"..Does this mean that the balls have been selected three at a time or three balls one by one? As per me..."three ball...

I too thought in the way Ron has approached the solution.But it's also great to see the unit digit's approach and the second appraoch where 77 is treated as 11 times 7 i.e basically what we are doing is that we are counting the total number of 7's in 350 and we can orally find the solutions for the ...

y=a(x-p)(x-q) represents a quadratic equation where p and q are the respective roots of the given quadratic equation which when substituted in place of x will give y=0. As far as 'a' is considered, it sets the orientation of the graph for the given quadratic equation i.e. whether the graph for this...

Note:The remainders on dividing A and B by 7 have been referred by the alphabets x and y repectively.Hence x not is not equal to y.(That's what i think). Now, x lies between 0 and 6 and so does y.(Hence both are non-negative). In order for A+B to be divisible by 7, the value of x+y must be divisible...

0 is an integer that is neither positive nor negative.

For ex:-to exclude all negative integers from the set of integers we say all non-negative integers rather than all positive integers.

I am with ps63739.The answer should be A.

The given question can be re-written as 5-5^[-(x-y)+1]=2^(y-1).(You can see it for yourself) But before we move forward we need to have a look back at the original question.From the original question we can make out that right side of the question is always positive and thus,x>y in the LHS of th...