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Q:

If (4/5)A = 3B = (2/3)C, then what is A : B : C?

A) 12 : 3 : 16 B) 12 : 45 : 10
C) 15 : 4 : 18 D) 9 : 12 : 16
 
Answer & Explanation Answer: C) 15 : 4 : 18

Explanation:
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Filed Under: Ratios and Proportions
Exam Prep: Bank Exams , CAT

Q:

The mean temperature of Monday to Wednesday was 37C and of Tuesday to Thursday was 34C . If the temperature on Thursday was (4/5) th that of Monday, the temperature on Thursday was?

Answer

\inline \fn_jvn M+T+W =(37\times 3)^{0}=111^{0}C   -----------(1)


\inline \fn_jvn T+W+Th=(34\times 3)^{0}=102^{0}C


\inline \fn_jvn \Rightarrow T+W+\frac{4}{5}M = 102^{0}C                --------------(2)


(1) - (2) gives


\inline \fn_jvn \frac{1}{5} th of temperature on Monday = 


\inline \fn_jvn \Rightarrow Temperature on Monday = \inline \fn_jvn 45^{0}C


\inline \fn_jvn \therefore Temperature on Thursday = \inline \fn_jvn \frac{4}{5}\times 45^{0}=36^{0}

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Subject: Average