Question 10
Eshan's birthday is on Friday 10th March. On what day of the week will be Shlok's Birthday in the same year if Shlok was born on 25th September?
Solution
According to the question, 10th March is Friday
Number of days left in March = $$31-10=21$$
Similarly, odd days from 10th March till 25th September = $$(21+30+31+30+31+31+25)\%7$$
= $$0+2+3+2+3+3+4=17$$
Now, dividing 17 by 7, remainder = 3
Thus, day on 25th September = Friday (+3) = Monday
=> Ans - (A)
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