Which of the following represents a b=64 ? · ABC26GN2970
Subject: General Aptitude · Chapter: Ratio and Proportion · Exam: Bank P.O. 2010
Which of the following represents $a b=64$ ?
(a)$8: a=8: b$
(b)$a: 16=b: 4$
(c)$a: 8=b: 8$
(d)$32: a=b: 2$
(e)None of these
Answer
Explanation
(a) $8: a=8: b \Rightarrow 8 a=8 b \Rightarrow a=b$. $a: 16=b: 4 \Rightarrow 4 a=16 b \Rightarrow a=4 b$. $a: 8=b: 8 \Rightarrow 8 b=8 a \Rightarrow b=a$. $32: a=b: 2 \Rightarrow a b=64$.
Explanation as extracted from the printed page; notation may be imperfect.
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