[計量] 請教一題計量
Each of the following numbers has two digits blotted out.
Which of the numbers could be the number of hours in x days,
where x is an integer?
(A) 25▊,▊06
(B) 50▊,▊26
(C) 56▊,▊02
(D) 62▊,▊50
(E) 65▊,▊20
Ans: (E)
請問大家是如何推出答案?
有甚麼規律可循?
謝謝
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