Question

Find the missing number 88,22,25,5,9,3/2,??(a)10/2,(b)13/2,(c)6,(d)12

Answer 1

(b)
$\frac{13}{2}$
$\frac{88}{4} = 22$
$22 + 4 = 25$
$\frac{25}{4 + 1} = 5$
$5 +4 = 9$
$\frac{9}{5 + 1} = \frac{3}{2}$
$\frac{3}{2} + 4 = \frac{13}{2}$

Answer 2

Missing number is:

88, 22, 25, 5, 9, 3/2, (b) 13/2.

Step-by-step explanation:

The pattern followed in this series is:

Pattern A: X ÷ (4 + n) = Y

Pattern B: Y + (3 + n) = Z

Where,

n = Whole numbers

Now,

1. 88 ÷ (4 + 0) = 22 ⇒ Pattern A

2. 22 + (3 + 0) = 25 ⇒ Pattern B

3. 25 ÷ (4 + 1) = 5 ⇒ Pattern A

4. 5 + (3 + 1) = 5 + 4 = 9 ⇒ Pattern B

5. 9 ÷ (4 + 2) = 9 ÷ 6 = 3/2 ⇒ Pattern A

6. 3/2 + (3 + 2) = 3/2 + 5 = (3 + 10)/2 = 13/2 ⇒ Pattern B