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In Mathematics / High School | 2014-05-23

The product of the first and last digit is equal to 48.

The sum of the last two digits is greater than 7.

The sum of the first two digits is equal to 9.

Asked by suzieq

Answer (2)

a , b , c , d → d i g i t s o f n u mb er a ⋅ d = 48 c + d = 7 ⇒ c ≤ 7 an d d ≤ 7 ( ∗ ) a + b = 9 a ⋅ d = 48 ⇒ ( ∗ ) a = 8 an d d = 6 a = 8 ⇒ 8 + b = 9 ⇒ b = 1 d = 6 ⇒ c + 6 = 7 ⇒ c = 1 A n s . n u mb er : 8116

Answered by kate200468 | 2024-06-10

The number can be represented by the digits satisfying the equations. A possible solution that meets all conditions is 8116. The possible values for the digits can be checked systematically from the relationships provided.
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Answered by kate200468 | 2024-12-23

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