Question

In the following question a specific group
of numbers is given. From the given
alternatives, find out the right number
which matches the given group.
341, 572, 781
634
871
909
O
990​

Answer 1

Answer:

990 is the answer of this question

Answer 2

990 is the right number that matches the group.

Given:

A group of numbers- 341, 572, 781

To find:

The right number which matches the given group

Solution:

We can find the number by following the given process-

We know that the group of numbers given have something common in them.

The numbers 341, 572, 781 are all multiples of 11.

341=11×31

341=11×31572=11×52

341=11×31572=11×52781=11×71

So, the right number will also be a multiple of 11 itself.

When 634, 871, 909 are divided by 11, they leave a remainder.

634÷11 leaves 7 as remainder.

871÷11 leaves 2 as remainder.

909÷11 leaves 7 as remainder.

These are not multiples of 11.

However, 990=11×90 and is a multiple of 11.

So, it is the right number.

Therefore, the right number which matches the given group is 990.