SSC
Government Jobs Exams
Numerical Ability
Clocks and Calendars
What was the day of the week on 17th June, 1998?
Option
A) Monday
B) Tuesday
C) Wednesday
D) Thursday
Read Solution (Total 4)
-
- Ans: (C)
W.K.T for every 400 days , the no. of odd days is 0
so upto 1600 year , d no. of odd days ll be "0" only ---->(1)
1601 - 1900 ie for 300 years calculate d no. of odd days
it ll be 15%7 = 1 ----(2)
from 1901 - 1997
d no. of leap years in 98 yrs ll be 97/4 = 24 yrs nd ordinary yrs 97-24 =73 [v shuld not include 98 bcoz its not yet completed]
so no. of odd days in 97 yrs 24 *2+73*1= 121%7= 2 --->(3)
in 1998 -- calculate the no. of days till june 17th
31+28+31+30+31+17 [ since 1998 is not a leap year, feb contains 28 days only]
=168%7= 0 ---->(4)
so the total no. of odd days in 1998 yrs is
0 + 1 + 2 + 0 = 3
0 --- sunday
1 --- monday
.
.
so the day is wednesday [ since d total no. of odd days =3]
Ans: (C) - 10 years agoHelpfull: Yes(11) No(1)
- Wednesday
D = d+m+yy+q+c
Where d--->day of month
m---->month offset
January 0
February 3
March 3
April 6
May 1
June 4
July 6
August 2
September 5
October 0
November 3
December 5
yy--->Last two digits of the year
q---->quotient of (yy/4)
c----->century offset (add 0 for 1900 and 6 for 2000)
D =17+4+98+24+0 = 143
R=Remainder of(D/7)
= 3
R Day
0 Sunday
1 Monday
2 Tuesday
3 Wednesday
4 Thursday
5 Friday
6 Saturday
The day of the week on 17th June, 1998 is wednesday - 10 years agoHelpfull: Yes(8) No(0)
- It was Wednesday on 17 june 1998.
- 10 years agoHelpfull: Yes(3) No(1)
- please anyone can share trick for this question.
- 10 years agoHelpfull: Yes(1) No(1)
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