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16 = (4)2 36 = (4 + 2)2 Similarly, 64 = (8)2 ? = (8 + 2)2 = 100 Hence, option D is correct.
Anil and Ashish receive Rs.1400 for work of 7 days. If Anil is 4 times efficient than Ashish, then find the daily wage received by Ashish.