Exam Maths Puzzle Numerical Ability

find the remainder: p+2/21!
p= 1!+(2*2!)+(3*3!)+..........+(20*20!)

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Exam Other Question
length of rectangular field is 31/3 of its breadth. area is 432 sq mts. perimeter ? find the next term
16, 54, 195, x
a)784
b)802
c)824
d)836