Some equations are solved on the basis of a certain system. On the same basis,…
PYQ SSC JE (Junior Engineer) 2013
Some equations are solved on the basis of a certain system. On the same basis, find out the correct answer for the unsolved equation.
If 42 = 7, 52 = 7, 63 = 9, then 72 = ?
- A.
14
- B.
13
- C.
10
- D.
8
Attempted by 8 students.
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