FOREIGN CURRENCY

Number Theory Level 1

In a certain country ½ of 5 = 3. If the same proportion holds, what is the value of 1/3 of 10 ?


The answer is 4.

Dinesh Nath Goswami by Dinesh Nath Goswami , 20, India

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3 solutions

Noel Lo
Sep 3, 2015

1/2 of 5 is 3 so 5/2=3. This means that 1/3 = 2/5. So 1/3 of 10 = 2/5 of 10 = 20/5 =4.

1 Helpful 0 Interesting 0 Brilliant 0 Confused
Azadali Jivani
Aug 1, 2015

As per given 1/2 of 5 =3 ........(Means 1/2 * 6 = 3)
vice versa 1/3 of 10 = 4..........(Means 1/3 * 12 =4 (Ans.)

1 Helpful 0 Interesting 0 Brilliant 0 Confused

5 2 = 3 \frac{5}{2} = 3

4 3 × 5 2 = 4 \frac{4}{3} \times \frac{5}{2} = \boxed{4}

0 Helpful 0 Interesting 0 Brilliant 0 Confused

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