When a student weighing 45 kgs left a class, the average weight of the remaining 59 students increased by 200g. What is the average weight of the remaining 59 students?
i did like this..
45+200*59/1000
45+11.8
56.8...
but the answer is 57... How??? and what's wrong in my process?
An 8 cm by 12 cm rectangle is folded along its long side so that two diagonally opposite corners coincide. What is the length of crease formed?
Number of ways in which 2n students can be divided into n pairs?
how many squares are there in a chess board ?
If the cost price for a manufacturer is his expenditure on labor, if the manufacturer plans to increase the selling price by 4% and wants a profit of 200/11% in return, by what percentage should he reduce his expenditure on labour?
Approach guys
What is the minimum area of Quadrilateral ABCD,if the area of a pair of diagonally opposite triangles(formed by joining the diagonals of the Quadrilateral)is 12 and 27 respectively?
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y = [x] + [2x] + [3x] + [4x] ......... [100x]
x ∈ [1, 100]
How many of values of y can exist ?
--> [.] stand for greatest Integer function
how to find the coefficient of x^90 in (1+x+x^2+..+x^50)^3 * (1+x+x^2..x^100)..? Approach please. (source PG - 2009 thread, no OA)
There are 7 sisters dining on a circular table with neighbors and each time they dine, neoghbours are different..how many days in a year can they dine this way?
Where i can find all concept articles related to quant/di/lr and verbal here on pg ?
Fnd no. Of ways in which 10 diff flowers be strung to form a garland so that 3 particular flowers are always together.