A, BB y CD son tres números primos formados con los dígitos 1,2,3,4 y 7. descubrirlos es la suma A2 + BB2 + CD2 es igual a 2019
Answers
Answered by
0
Answer:
A = 7
BB = 11
CD = 43
Step-by-step explanation:
Such Problems can be solved by hit and trial method
sum of 3 squares ending up in 9
Square of any number will end at 1 , 9 as 2 or 4 can not be at unit place as Prime numbers
two digit at unit place must be 3 & 7 and one should be 1
so that 9 + 9 + 1 = 19 ends with 9 at unit place in 2019
11² + 23² + 37²
= 121 + 529 + 1369
= 2019
but there should be one single digit also
lets try another solution
7² + 11² + 43²
= 49 + 121 + 1849
= 2019
it meets all the requirements
hence
A = 7
BB = 11
CD = 43
Similar questions