Question

On what dates of October, 1975 did Tuesday fall ?How can i solve it..

Answer 1

This is ur ans hope it will help you in case of any doubt comment below

Answer 2

For determining the dates, we find the day on 1st Oct, 1975.

1600 years have '0' odd days ............(A).

300 years have '01' odd days ............(B).

74 years have (18 leap years + 56 ordinary years)

2×18+1×56=92 odd days = '01' odd days.....(C)

Days from 1st January to 1st Oct., 1975

1st Jan - 30 June + 1st July to 1st Oct.

181+31+31+30+1=274 days $$

$$=\cfrac {274}{7} = '01'$$ odd days................... (D)

Adding (A) + (B) +(C) +(D) =0+01+01+01 = ′ 03 ' odd days

Ans. Wednesday( 1st Oct), hence 7 th ,14 th,21 st,28 th Oct. will fall on Tuesday.

Hope it helps you.