Pergunta de entrevista da empresa Deutsche Bank

75^2`

Respostas da entrevista

Sigiloso

13 de set. de 2011

5575 (obviously not the right answer)

Sigiloso

20 de set. de 2011

75^2 = 75*75 = 5625

Sigiloso

15 de jun. de 2012

When squaring a number X5 ending on a 5 the answer is: X*(X+1)25. So in this case 75*75 = 7*8 25 = 5625