Question

9. Rahul's birthday is on Saturday 5th June. On what day of the week will be Radhika's birthday
in the same year, if Radhika was born on 13th September? (pls show steps also pls)​

Answer 1

Question :- Rahul's birthday is on Saturday 5th June. On what day of the week will be Radhika's birthday in the same year, if Radhika was born on 13th September ?

Solution :-

given that,

• 5 June = Saturday .
• 13 September = ?

we know that,

• Odd Day :- Total Number of days divide by 7 , the remainder we get, is called odd day.

so,

→ 5 June to 13 Sept. = 25(June) + 31(July) + 31(Aug.) + 13(Sept.)

→ 5 June to 13 Sept. = 25 + 31 + 31 + 13

→ 5 June to 13 Sept. = 100

→ 5 June to 13 Sept. = 100 ÷ 7

→ 5 June to 13 Sept. = Remainder 2 .

therefore,

→ 13 Sept. = 5June + 2

→ 13 Sept. = Saturday + 2

→ 13 Sept. = Monday (Ans.)

Hence, Radhika's Birthday will be on Monday of the week same year.

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