Question

5 4 3 = 18 solve this series triangle ​

Answer 1

Answer:

question can't be understood. plz provide proper information to solve.

Answer 2

The complete question is:

The three sides of triangle is 5 ,3 and 4 and the middle number is 18 and sides of 2nd triangle is 3,3 and 5 and its middle number is 65 and the third triangle has sides 9,6 and 3 .find its middle number.​

Given:

(i) The three sides of triangle is 5 ,3 and 4 and the middle number is 18.

(ii) The sides of 2nd triangle is 3,3 and 5 and its middle number is 65.

(iii) The third triangle has sides 9,6 and 3

To find:

(i) The middle number of third triangle.

Solution:

Let us get a logic from the problems first:

For the first triangle, the three sides of triangle is 5 ,3 and 4.

The middle number is 18

We sum up the sides and the individual digits of the middle number to get a final number.

This final number increases by 1 when we go to the next triangle and again by one for the third triangle.

So, for the first triangle, we first sum up 5, 3 and 4.

We get (5+3+4) = 12

Again, we add 12 with 1 and 8 (Because the digits of 18 are 1 and 8), to get the final number.

12 + 1 + 8 = 21.

For the second triangle, the three sides of triangle is 3 ,3 and 5.

The middle number is 65.

Again, for the second triangle, we first sum up 3, 3 and 5.

We get (3+3+5) = 11

Again, we add 11 with 6 and 5 (Because the digits of 65 are 6 and 5), to get the final number.

11 + 6 + 5 = 22.

We can see that the final number is incremented by one as stated in the logic.

For the third triangle, its middle number should be 23.

For the third triangle, the three sides are 9 ,6 and 3.

So, we first sum up 9, 6 and 3.

We get (9+6+3) = 18

Let the digits of the final number be x and y.

18 + xy  = 23

⇒xy = 5

So, x is 5 and y is 0.

Thus the number is 50.

50 is the middle number.