(1) 63 (2) 61 (3) 65 (4) 64
Solution:
√1+x/961= 32/31
Squaring both sides,
1+ x/961= (32/31)2= 1024/961
⇒ x/961= 1024/961-1=1024-961/961= 63/961
⇒ x= 63
Then the option is (1) 63
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