In the following question, select the missing number from the given series.
147, 153, 159, ?, 171, 177
'6' is added to all the numbers.
147Â + 6 =Â 153
153Â + 6 =Â 159
159Â + 6 =Â 165
165Â + 6 =Â 171
171 + 6 = 177
=> Ans - (D)
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