Question

Hey Guys.. a brain workout
Find the missing term?
90, 180, 12, 50, 100, 200,_____, 18
the options are:
1. 150 2. 175 3.215 4. 250
Please provide explanation also.​

Answer 1

Clearly, 90 = 30 x 3, 180 = 6 x 30, 12 = 2 x 6, 50 = 25 x 2, 100 = 4 x 25, 200 = 50 x 4.

So, missing term = 3 x 50 = 150.

Answer 2

Answer:

$3 \times 50 = 150$