Question

What is probability of 5 Sundays in January month

Answer 1

The month January has 31 days.

Now,

31 days=28 days + 3days

31 days= (4*7)days+3days

Thus January has 4 Sundays.

The remaining 3days can be

Sunday, Monday, Tuesday

Monday, Tuesday, Wednesday

Tuesday, Wednesday, Thursday

Wednesday, Thursday, Friday

Thursday, Friday, Saturday

Friday,Saturday, Sunday

Saturday, Sunday, Monday

The total no. Of outcomes=7

Favourable no. Of outcomes=3

Probability of getting 5 Sundays in a month of January is =3/7