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Question

If the first day of the year 1990 was a Monday what day of the week was 1st January 1998?

A
Thursday
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B
Tuesday
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C
Wednesday
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D
Friday
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Solution

The correct option is C Thursday
IN the leap year odd no. of day in the year =2

Leap year has 29 day in feb.
The Leap in that divided by 4
So,
1990=1
1991=1
1992=2
1993=1
1994=1
1995=1
1996=2
1997=1
1998=1
(1+1+2+1+1+1+2+1+1)=11

The odd no. of the year = No. of day in year 7
11/7=4
Remainder=4
So, 4=TUESDAY

Hence, this is the answer.

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