Question

In the following number sequence, how many such
even numbers are there which are exactly divisible
by their immediate preceding number but not exactly
divisible by their immediate following number?
4 7 8 2 6 7 9 3 6 5 0 2 4 6 8 1
(1) 0 (2) 2
(3) 3 (4) 1

Answer 1

3) 3
2 6 7 ,6 is divided by2 and not divided by 7
3 6 5,6 is divided by 3 but not divided by 5
2 4 6, 4 is divided by 2 but not divided by 6

Answer 2

Answer:

Option number 4) 1 even number  I.e. number 8

Step-by-step explanation:

• In given sequence only  7 8 2 is satisfied the required crieteria .

• Because 8 is an even number and exactly divisible by 2 (preceding number of 8) but not divisible by 7 (following number of 8).
• Let us see remaining even numbers are
• 4 7 8 2 6 7 9 3 6 5 0 2 4 6 8 1

• sesets are

• 4 7

• 8 2 6
• 2 6 7
• 3 6 5
• 0 2 4
• 2 4 6
• 4 6 8
• 6 8 1

4 is not divisible by 7 , there is no followed number for 4 , 4 is the first number in series.

2 is not exactly divisible by 6 and not by 8 also

6 is not  divisible by 7 and not exactly divisible by 2

6 is not divisible by 5 and also not by 3

2 is not exactly divisible by 4 and by 0

4 is not exactly divisible by 6 and by 2 also

6 is not divisible by 8 and by 4

8 is not exactly divisible by 1 and also by 6

conclusion is

Only one even number 8 is satisfied  given rules

So answer is option 4) 1 even number