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Ala Rishika
CAT Preparation Community 2y ago
8 17 42 91. ?
2
Ashutosh Karki 2y ago
11^2 + 91= 121+91=212
Difference is the sq. of odd no.s.
Curren Rajesh 2y ago
yes but after difference of 49 we have to take difference of 81 so ... 9^2 +91 =81+91= 172
