Question on: JAMB Mathematics - 2015
Determine the third term of a geometrical progression whose first and second term are 2 and 14 respectively
A
1458
B
1485
C
1345
D
1258
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Correct Option: A
In a geometric progression (GP), each term is found by multiplying the previous term by a constant called the common ratio (r).
- Find the common ratio (r): The common ratio can be found by dividing the second term by the first term: r = second term / first term = 14 / 2 = 7
- Find the third term: The third term is found by multiplying the second term by the common ratio: Third term = second term * r = 14 * 7 = 98
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