Question

Q 13.
A 21
B. 25
C.27
D. 29​

Answer 1

Step-by-step explanation:

Looking at the numbers we need to find the missing number. So we have

1, 2, 5, 3 = 13

1,9, 5, 4 = 17

1, 4, 5, 6 = ?

So we get

5 x 3 – 2 x 1 = 15 – 2 = 13 – 0 = 13

5 x 6 – 4 x 1 = 30 – 4 = 26 + 3 = 29

5 x 4 – 9 x 1 = 20 – 9 = 11 + 6 = 17

So the missing number will be 29

Reference link will be

https://brainly.in/question/12404073

Answer 2

Given:

Please find in attachment.

To find:

Value= ?

Solution:

In the given attachment file three design is given, in which first and last design has all value but in the second design there is one value missing to find this value we apply the following rule:

To check first design value we multiply and subtract the value:

⇒ 5 × 3 - 2×1

⇒15-2

⇒13+0

⇒13

To solve the second design value we get value: 26 and by add number we get the correct value:

⇒ 5 × 6- 4 ×1

⇒30-4

⇒26

By add the value 3 we get the right value that is:

⇒26+3

⇒29

To solve the third design value we get the value that is 11 and by add value we get the correct value that is:

⇒ 5 × 4- 9 ×1

⇒20-9

⇒11

By add the value 6 we get the right value that is:

⇒11+6

⇒17

That's why the final value of second design is= 29