LET π‘Žπ‘Ž + 5 = 𝑏𝑏 2 βˆ’ 1 = 𝑐𝑐 2 + 3 = 𝑑𝑑 βˆ’ 4. WHICH OF THE NUMBERS π‘Žπ‘Ž...

11. - DE THI TOAN QUOC TE KANGAROO NAM 2016 LOP 9 10 CO DAP AN DE TIENG ANH
DE THI TOAN QUOC TE KANGAROO NAM 2016 LOP 9 10 CO DAP AN DE TIENG ANH

11. Let π‘Žπ‘Ž + 5 = 𝑏𝑏 2 βˆ’ 1 = 𝑐𝑐 2 + 3 = 𝑑𝑑 βˆ’ 4. Which of the numbers π‘Žπ‘Ž, 𝑏𝑏, 𝑐𝑐, 𝑑𝑑 is the greatest?

(A) π‘Žπ‘Ž (B) 𝑏𝑏 (C) 𝑐𝑐 (D) 𝑑𝑑 (E) impossible to determine