Difference between revisions of "1950 AHSME Problems/Problem 1"

(Solution)
(Solution 1)
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So, the third number is (64/12)x6  =  32
 
So, the third number is (64/12)x6  =  32
  
32/3 = 10 \frac{2}{3} <math></math>
+
32/3 = 10 \frac{2}{3}  
 
which is <math>\boxed{\textbf{(C)}}</math>.
 
which is <math>\boxed{\textbf{(C)}}</math>.
  
 
~Jayeed Mahmud (Bangladesh) 9/21/25
 
~Jayeed Mahmud (Bangladesh) 9/21/25
 
 
  
 
==Solution 2==
 
==Solution 2==

Revision as of 10:59, 21 September 2025

Problem

If $64$ is divided into three parts proportional to $2$, $4$, and $6$, the smallest part is:

$\textbf{(A)}\ 5\frac{1}{3}\qquad\textbf{(B)}\ 11\qquad\textbf{(C)}\ 10\frac{2}{3}\qquad\textbf{(D)}\ 5\qquad\textbf{(E)}\ \text{None of these answers}$

Solution 1

Given, The ratios are 2:4:6 The number is 64

So, the sum of the ratios is 12

So, the first number is (64/12)x2 = 32/3 (This is the smallest)

So, the second number is (64/12)x4 = 64/3

So, the third number is (64/12)x6 = 32

32/3 = 10 \frac{2}{3} which is $\boxed{\textbf{(C)}}$.

~Jayeed Mahmud (Bangladesh) 9/21/25

Solution 2

If the three numbers are in proportion to $2:4:6$, then they should also be in proportion to $1:2:3$. This implies that the three numbers can be expressed as $x$, $2x$, and $3x$. Add these values together to get: \[x+2x+3x=6x=64\] Divide each side by 6 and get that \[x=\frac{64}{6}=\frac{32}{3}=10 \frac{2}{3}\] which is $\boxed{\textbf{(C)}}$.

See Also

1950 AHSC (ProblemsAnswer KeyResources)
Preceded by
First Question
Followed by
Problem 2
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
All AHSME Problems and Solutions

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