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4 votes
SUPER hard question

63, 72, 81, ........ 594

n = [ (l - a)/d ] + 1

n = [(594 - 63)/9] + 1

n = (531/9) + 1

n = 59 + 1

n = 60

User Dfmetro
by
7.9k points

1 Answer

5 votes

Answer:

n = 60

Explanation:

Terms which are divisible by 9 between 60 and 600.

63, 72, 81, ........ 594

n = [ (l - a)/d ] + 1

n = [(594 - 63)/9] + 1

n = (531/9) + 1

n = 59 + 1

n = 60

User Ian Kenney
by
9.5k points

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