Question

The nth term of a sequence is 4n-3. finf the number in the sequence that is closest to 150

Answer 1

149

Explanation:

nth term = 4n - 3 ..............(1)

Now,

For The tern closer to 150

150 = 4n - 3

or, 153 = 4n

or, n = 38.25

Now,

Since n can not be in decimal,

Put n = 38 in (1) (Rounding off 38.25 to 38)

or, nth term = 38*4 -3

= 152 - 3 = 149

∴ The number of sequence closer to 150 is 149