which number will replace in question mark
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Answered by
30
logic
in first triangle
logic is
7² - (4²+3²)
= 49 - 25
= 24
now reverse the digits
we get
42
In same way use this logic in 2nd triangle
8² - (6²+3²)
= 64 - 45
= 19
reverse the digits
we get 91
in same way use this in 3rd triangle
9² - (5² + 3²)
81 - 34
= 47
reverse the digits
we get 74
so required answer for 3rd triangle is 74 i.e. option D
hope this will help you
Answered by
8
D) 74
Step-by-step explanation:
The pattern of numbers in the first two triangles is such that square of bottom number - sum of squares of other two numbers. Enter the answer in the middle of the triangle after interchanging the digits.
First triangle = 7² - (4²+3²) = 49 - 25 = 24
The number in the middle is 42.
Second triangle = 8² - (6²+3²) = 64 - 45 = 19
The number in the middle is 91.
Applying the same to the third triangle, we get:
9² - (5² + 3²) = 81 - 34 = 47
The number in the middle will be 74.
Option D is the answer.
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