Number System
What is the least number that should be added to 5200 to make it a perfect square ?

288
225
275
129

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Number System
The difference between a two-digit number and the number obtained by interchanging the digit is 36. What is the difference between the sum and the difference of the digits of the number if the ratio b

None of these
4
16
8

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Number System
Letters of the word SERIES are arranged in such a way that all the vowels always come together. What is the total number of ways of making such an arrangement ?

112
36
72
98

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