Question

4 feb and 10 march fall on sunday in a particular year. find number of sundays in month of april in same year

Answer 1

Hey !

This Year 4th February was a Sunday, but 10 March was not So the dates are of a leap year.

If 10 March is Sunday, then Sundays in March 
⇒  3 March
     10 March
     17 March
     24 March
     31 March
     +7
      6 April
Hence, 1st of April is a Monday, So 6th will be a Sunday
So Sundays in April
⇒  6 April    +7
     13 April   +7
     20 April   +7
     27 April   

∴ In the same year, there are four sundays in the month of April.

Important Tip : April is a month of 30 days, So only 2 ( 30 - 28 ) weekdays will repeat 5 times in a month, else will be 4 times.

Eg. If It was Sunday on 1 April, then there will be 5 Sundays in April ⇒1,8,15,22,29 .
      If Sunday was on 5 April, then there will be 4 Sundays in April ⇒5,12,19,26

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