What should be added to the product of the two numbers 983713 and 983719 to make it a perfect square?
Anonymous Poll
18%
9
40%
13
24%
19
18%
27
In how many ways can you place N coins on a board with N rows and N columns such that every row and every column contains exactly one coin?
Anonymous Poll
11%
N
67%
N(N-1)(N-2) 2 x 1
16%
N2
6%
NN
👍1
Life Science- CSIR NET, GATE, SET, DHR BRET, BARC & PSC pinned «In how many ways can you place N coins on a board with N rows and N columns such that every row and every column contains exactly one coin?»
A 100 m long train crosses a 200 m long and 20 m widebridge in 20 seconds. What is the speed of the train in km/hr?
Anonymous Poll
20%
45
31%
36
35%
54
14%
57.6