Question

In a triangle 4 3 7=42, 6 3 8=91, 5 3 9=?

Answer 1

5 3 9 = 74

Given:

4 3 7=42

6 3 8=91

To find:

5 3 9=?

Explanation:

The logic behind this number are arranged is that.

7²-(4²+3² )

49-25=24

24 opposite 42

8²- 3² + 6²

64 - (9 + 36) =  19

On the similar way,

9²-(5²+3² )

81-34=47

47 opposite 74

Answer is 74

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Answer 2

5 3 9 = 74

Step-by-step explanation:

⇒ 7² - (4² + 3²)

⇒ 49 - (16 + 9)

⇒ 49 - 25

⇒ 24

On reversing the number, we get,

∴ 42

⇒ 8² - (6² + 3²)

⇒ 64 - (36 + 9)

⇒ 64 - 45

⇒ 19

On reversing the number, we get,

∴ 19

⇒ 9² - (5² + 3²)

⇒ 81 - (25 + 9)

⇒ 81 - 34

⇒ 47

On reversing the number, we get,

∴ 74