Number Play Exam Prep
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Number Play Exam Prep
Sample questions with model answers
Every question in the paper gets a full exam-length answer in the app — organised by marks, the way a topper writes it.
The units digit of a 2-digit number is 3 and seven times the sum of the digits is the number itself. Find the number.
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The number is 21.
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In a 2-digit number, the digit at the units place is twice the digit at the tens place. The number exceeds the sum of its digits by 18. Find the number.
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The number is 36.
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A 2-digit number is 3 more than 4 times the sum of its digits. If 18 is added to the number its digits are reversed. Find the number.
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The number is 75.
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The sum of the digits of a 2-digit number is 15. The number obtained by interchanging its digits exceeds the given number by 9. Find the original number.
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The original number is 69.
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