2. The middle digit of a number between 100 and 1000 is zero and the sum of the other digit is 13. If the digits are reversed the number so formed exceeds the original number 495. Find the number.
3. The sum of a 2-digit number is 11. The tens digit is one more than four times the unit digit. Find the number.
4. In a class of 50 students, the number of females is 2 more than 5 times the number of males. How many males and females are there in the class.
3. The sum of a 2-digit number is 11. The tens digit is one more than four times the unit digit. Find the number.
4. In a class of 50 students, the number of females is 2 more than 5 times the number of males. How many males and females are there in the class.
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Answer:
2. 409
3. 92
4. There are 42 females and 8 males in the class
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