Question

23,28,38,?, 62,70 find the missing no using series... and give the reason and step solution please ​

Answer 1

The given sequence:

23, 28, 38, ?, 62, 70

We have to find, the value of missing number (?).

Solution:

The pattern follow:

Next number = Previous number + (Sum of the digits).

28 = 23 + (2 + 3)

    = 23 + 5 = 28

38 = 28 + (2 + 8)

    = 28 + 10 = 38

? = 38 + (3 + 8)

⇒ ? = 38 + 11 = 49

62 = 49 + (4 + 9)

    = 49 + 13 = 62

70 = 62 + (6 + 2)

    = 62 + 8 = 70

∴ Missing number(?) = 49

Thus, the value of "missing number(?) is equal to 49".

Answer 2

Given:

The sequence:  23, 28, 38, ?, 62, 70

To find:

The value of missing number (term).

Solution:

From given, we have the data as follows.

The sequence is  23, 28, 38, ?, 62, 70

The pattern using which the sequence is created is as follows.

Next number = Previous number + Sum of the digits

28 = 23 + (2 + 3)  = 23 + 5 = 28

38 = 28 + (2 + 8)  = 28 + 10 = 38

? = 38 + (3 + 8)   ⇒ ? = 38 + 11 = 49

62 = 49 + (4 + 9)  = 49 + 13 = 62

70 = 62 + (6 + 2)  = 62 + 8 = 70

∴ The missing term is 49