Question

Q31
Dev loves solving series and he came
across a simple series: 3, 6, 10, ?, 21, 28.
What is the number that will replace the
question mark?​

Answer 1

Answer:

the missing number is 15

Answer 2

Answer:

15

Step-by-step explanation:

first we will subtract the receding number from the preceding number

6-3 = 3

10-6= 4

? - 10 = x

as we can see a pattern

X = 5

? - 10 = 5

? = 10+5

? = 15