Question

Sherlock Holmes was sitting comfortably on an armchair on a snowy day. Dr. Watson was sitting beside him reading a book near the fireplace. Suddenly Holmes said to Watson,” I am having a little brainteaser for you”. Then Holmes scribbles something in a piece of paper and give it to Watson. The note is: 217: 335 896: 543 345: ?

Answer 1

The riddle given by Dr. Watson to Sherlock Holmes is:

217 is to 335
896 is to 543
345 is to ____

We need to find the missing number of the third pair of the riddle. This is a ratio and proportion problem.

217/ 335 = 896/ 543 = 345 / x

The value of x is 209.