CAT Question of the Day Find the value of;
nC0 × n -1C3 + nC1 × n-1C2 + nC2 × n-1C1 + nC3 × n-1C0
| OPTIONS | | |  | 1) | 2nC3 | | | 2) | 2n –1C3 | | | 3) | 2n +1C3 | | | 4) | n +1C3 |
Tip of the Day In the Jumbled Sentences questions, watch out for any chronology clues - specific order of events taking place one after the other. Last year's Question of the day (03-Jul-11) A rectangular piece of land with integer sides is known to have an area which is a multiple of 66. The perimeter of the plot is 176 units. Calculate the square of the length of the diagonal.
| OPTIONS | | | | | 1) | More than 1 solution | | | 2) | 3872 | | | 3) | 4840 | | | 4) | 4114 | | | 5) | None of the above |
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