Multiple choice

Directions: Study the following information & answer the question given below: In a certain code, the symbol for 0 (zero) is @ & for 1 (one) is $. There are no other symbols for all other numbers greater than 1. The numbers greater than 1 are to be written only by using the two symbols given above. The value of the symbol given for 1 doubles itself every time it shifts one place to the left. Study the following example: 0 is written as @ 1 is written as $ 2 is written as $@ 3 is written as $$ 4 is written as $@@ & so on.

Which of the following numbers will be represented by $$@$?

  1. 8

  2. 13

  3. 11

  4. 12

  5. None of these
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

It can be shown as: $                     $                     @                    $ (=2x4=8)           (=2x2=4)              (=0)              (=1) Adding these 8 + 4 + 0 + 1 = 13 Thus $$@$ represents number 13.

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