Question

Find the next two numbers in the pattern.
−12,60,−300,1500, , , . . .

Answer 1

- 7500 , 37500

Explanation:

there is a common ratio r between consecutive terms in the sequence

r = 60 ÷ - 12 = - 300 ÷ 60 = 1500 ÷ - 300 = - 5

To obtain the next term in the sequence multiply the preceding term by the common ratio r = - 5

1500 × - 5 = - 7500

- 7500 × - 5 = 37500

the next two terms are - 7500 , 37500