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Aptitude · all questions

Problems On Numbers
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A number consists of two digits such that the digit in the ten's place is less by 2 than the digit in the unit's place. Three times the number added to times the number obtained by reversing the digits equals 108. The sum of the digits in the number is :

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If (73)2 is subtracted from the square of a number, the answer so obtained is 5075. What is the number ?

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The sum of three consecutive odd numbers is 20 more than the first of these numbers. What is the middle number ?

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The product of two numbers is 192 and the sum of these two numbers is 28. What is the smaller these two numbers ?

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If the square of a two-digit number is reduced by the square of the number formed by reversing the digits of the number, the final result is :

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Three times the first of three consecutive odd integers is 3 more than twice the third. The integer is :

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