This year

This year, 2020, is a leap year. How many leap years had there been since 1904?

Correct answer:

n =  30

Step-by-step explanation:

d=4 a=1904 b=2020  b = a + (n1) d  n=dba+1=420201904+1=30



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algebraarithmeticUnits of physical quantitiesGrade of the word problem

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