A number of two digits is 3 more than 4 ...

A number of two digits is 3 more than 4 times of the sum of its digits. The number, obtained by reversing the position of the two digits is 18 more than the initial number. Find the number.

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A number of two digits is 3 more than 4 times of the sum of its digits. If the positions of the digits of the number be interchanged , then the new number thus formed is 18 more than the original number. Determine the number.

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A two digits number is 3 times of the sum of its digits. If the digits are interchanged, then the number thus obtained is 9 less than 3 times of the original number. Find the number.

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The number of 10 digit numbers formed by using the digits 1&2 is

CALCUTTA BOOK HOUSE-LINEAR EQUATIONS IN REAL PROBLEMS-EXERCISE-5

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