Question : Directions: If 324 @ 289 = 35, 441 @ 484 = 43, then 625 @ 400 = ?
Option 1: 45
Option 2: 52
Option 3: 41
Option 4: 43
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Correct Answer: 45
Solution :
Given:
324 @ 289 = 35, 441 @ 484 = 43
The sum of the square root of the L.H.S. equals R.H.S. of the given equation.
Like, 324 @ 289 = 35 –
The square root of 324 = 18 and the square root of 289 = 17
So, 18 + 17 = 35
And, 441 @ 484 = 43 –
The square root of 441 = 21 and the square root of 484 = 22
So, 21 + 22 = 43
Similarly, follow the same pattern for 25 @ 400 –
The square root of 625 = 25 and the square root of 400 = 20
So, 25 + 20 = 45
Hence, the first option is correct.
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