Question

please solve it please friends quickly​

Answer 1

Step-by-step explanation:

1.

In the first group, 48 : 122

1st number 48=7² −1,

2nd number 11² +1=122=(7+4)²+1.

Second group,

1st number 168=13² −1,

2nd number is (13+4) ² +1=17²+1=290

So, the answer is 290

2.

The logic is x:(x×(x+1)−1)

4:(4×5−1)=4:19

∴7:7×8−1=7:55

So, the answer is 55

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