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Study the following information carefully and answer the questions given below.In a certain code, the symbol for 0 is âˆ† and for 1 is $. There is no other symbol for all other numbers greater than 1. The numbers greater than 1 are to be written using only the two symbols given above. The value of symbol for 1 doubles itself every time it shifts one place to the left. Study the following example.'0' is written as âˆ†   '1' is written as $   '2' is written as $∆   '3' is written as $$    '4' is written as $∆∆Which of the following symbol arrangement will represent '9'?
Options:
A .  âˆ†$$$
B .  $∆$∆
C .  $∆∆$
D .  $$∆∆
E .  None of these
Answer: Option C


9 = 8 + 0 + 0 + 1 = 1 * 23 + 0 * 22 + 0 * 21 + 1 * 20 = (1001)2



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