Question

complete the following series 1890,1890,630,126,18,?(a)6b.9c.2d.3​

Answer 1

ans=2

explanation-:

step-1

1890*1=1890

step-2

630*3=1890

step-3

126*5=630

step-4

18*7=126

step-5

2*9=18

this is the solution of ur problem

Answer 2

Answer:

The correct answer is (c) 2.

The next number in the given series will be 2.

Step-by-step explanation:

As observed from the given series:

1890,1890,630,126,18,?

We can notice a decrease in numbers from left to right and so we can conclude that division has taken place.

Since the first two numbers are same, we can assume that the first number was divided by 1 to get the second number.

Again, on dividing the second number with 3, we get the third number. Hence, the number with which they are divided increases by 2 starting from 1.

The numbers with which they are divided are: 1,3,5,7,9

Hence, the last number needs to be divided by 9 and we get 2 as resultant.