Question

The value of 5 - (17 / 9) is
1 point
a) 28/9
b) 9/25
c) 62/9
d) None of these
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Answer 1

Answer:

See the series

2, 9, 28, 65, —-, 217

2 = 1^3+1 = 1 +1

9 = 2^3+1 = 8 + 1

28 = 3^3 +1 = 27+1

65 = 4^3 + 1 = 64+1

217 = 6^3 + 1 = 216 +1

So the missing number is 5^3+1 = 125+1 = 126