Question
The difference between the two digits of a two –
digit number is 6. What is the number? I. The digit at unit place is bigger than the ten’s digit. II. The sum of the two digits is 8. Each of the questions below consists of a question and two statements numbered I and II given below it. You have to decide whether the data provided in the statements are sufficient to answer the question. Read both the statements and give answer –Solution
From (I) & (ii), we get x – y = 6…..(i) x + y = 8…..(ii) Solve (i) and (ii), we get ∴x = 7 ∴y = 1 So, the number is either 17 or 71. But statement (i) says that the unit digit is larger than the ten’s place. So, from statement (i) and (ii) we can find the exact number is 17.
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