# 4th Class Mental Ability Days and Dates & Possible Combinations Days and Dates & Possible Combinations

Days and Dates & Possible Combinations

Category : 4th Class

Possible Combinations

• How to make possible combinations/pairs of 1 - 1 objects from given $m-n$ objects?
•  If $m=n,$ then number of possible (1 - 1) combinations of (m - n) objects are$m\times m$.
•  If $m~\cancel{=}\,n,$then number of possible (1 - 1) combinations of (m - n) objects are$m~\times \,n$.

Days and Dates

• How to find the days required in question?
• We have to first naming what is today, yesterday and tomorrow.
• 8th day from today is again that day.

EXAMPLE

1.         If tomorrow will be Tuesday, then what was day before yesterday?

(a) Sunday                                             (b) Saturday

(c) Monday                                            (d) Friday

Explanation: (b)

 Day before yesterday Yesterday Today Tomorrow Saturday Sunday Monday Tuesday

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