If the cost of 4 pencils is Rs. 36 then cost of such 9 pencils will be:

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3 + 6 =
Solve this simple math problem and enter the result. E.g. for 1+3, enter 4.

If the cost of 4 pencils is Rs. 36 then cost of such 9 pencils will be:

Rs. 81

Rs. 49

Rs. 45

Rs. 72