Question

In U.P.on 17th Oct. 1996, the president rule was declared. Find the day of week on that date.

• A. Tuesday
• B. Friday
• C. Wednesday
• D. Thursday

Answer 1

The correct option is D Thursday

Formula to calculate day of week based on date given is

$=$ (Year Code + Month Code + Century Code + Number Date -Leap Year Code) $mod7$.

Year code $=$ (YY+(YY$÷4\left)\right)mod7$

$=(96+24)mod7$

$=1$

Month code $=0$

Century code $=0$

Day code $=(1+0+0+17)mod7$

$=18\left(mod7\right)$

$=4$.

Hence, the day is Thursday.