# idfy Interview Questions

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###### What least number must be subtracted from 7250 to get a perfect square? Also, find the square root of this perfect square. A. 65 B. 75 C. 85 D. 95
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###### A gardener wants to plant trees in his garden in rows in such a way that the number of trees in each row to be the same. If there are 24 rows the number of trees in each row is 42 if there are 12 more A. 18 B. 28 C. 38 D. 48
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###### In an examination, a student scores 4 marks for every correct answer and loses I mark for every wrong answer. If he attempts in all 60 questions and secures 130 marks, the number of questions he attem A. 18 B. 28 C. 38 D. 48
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###### A hall is 15 m long and 12 m broad. If the sum of the areas of the floor and the ceiling is equal to the sum of areas of the four walls, the volume of the hall is : A. 1000 m³ B. 1200 m³ C. 1400 m³ D. 1600 m³
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###### A boat covers a certain distance downstream in 1 hour, while it comes back in 11⁄2 hours. If the speed of the stream be 3 kmph, what is the speed of the boat in still water? A. 5 kmph B. 10 kmph C. 15 kmph D. 20 kmph
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###### Sum of present ages of A,B and C is 72 years. If 4 years ago , the ratio of their ages were 1:2:3 respectively, find A’s present age. A. 11 years B. 12 years C. 13 years D. 14 years
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