(Q). Consider n points in a plane no three of which are collinear and the ratio of number of hexagon & octagon that can be formed from these n points is 7:69 then find the value of...
(Q). A parallelogram is cut by two set of parallel lines parallel to sides of parallelogram. Each set has ‘n’ parallel lines. What is the total number of parallelogram thus...
(Q). Consider a set of ‘m’ parallel lines and another set of ‘n’ parallel lines then what is the number of parallelograms thus formed by these parallel lines?Solution:-To get a parallelogram we need to select 2 lines from ‘m’ lines...
(Q). Consider three set of parallel lines, having a, b, c points respectively & no three apart from the given three are collinear(i). if p represents number of straight lines that can pass through this system of a + b + c points excluding the three original lines...
(Q). Consider a set of ‘m’ parallel lines and another set of ‘n’ parallel lines then what is the number of vertices of parallelogram thus formed by these parallel lines?Solution:-Total number of vertices of parallelogram= total number of...
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