Question

what is the answer of this question​

Answer 1

Solution :-

In First ∆ we have Digits :- 7 --- 4 ---- 3 & inside = 42.

Lets See This Logic :-

☛ (Down Digit)² - [ (Right digit)² + Left Digit)² ] = xy = Reciprocal of xy = yx = Our Answer .

Check :-

in ∆ 1 :-

→ (7)² - [ 4² + 3² ]

→ 49 - (16 + 9)

→ 49 - 25

→ 24

→ Reciprocal

→ 42 (Ans).

Similarly, ∆ 2 :-

→ (8)² - [ 6² + 3² ]

→ 64 - (36 + 9)

→ 64 - 45

→ 19

→ Reciprocal

→ 91 (Ans).

Hence, Similarly, ∆ 3 :-

→ 9² - [ 5² + 3² ]

→ 81 - (25 + 9)

→ 81 - 34

→ 47

→ Reciprocal

→ 74 (Ans). = Option D.

Hence, we can say That, 74 is Correct Answer .

Answer 2

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$\huge\tt{SOLUTION:}$

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In 1st,

↪(7)² - [ 4² + 3² ]

↪ 49 - (16 + 9)

↪49 - 25

↪24

↪Reciprocal of 24

⏭ 42

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In 2nd,

↪ (8)² - [ 6² + 3² ]

↪ 64 - (36 + 9)

↪ 64 - 45

↪19

↪Reciprocal of 19

⏭ 91

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In 3rd,

↪ 9² - [ 5² + 3² ]

↪81 - (25 + 9)

↪ 81 - 34

↪47

↪ Reciprocal of 47

⏭ 74

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