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Ratio of area of two circles = (Ratio of radius)2 = 9:25 Ratio of Circumference = Ratio of radius Hence, Ratio of Circumference = √(9/25) = 3:5
30 29 91 446 ? 28217
8 9 ? 57 164 945
...If 152, 242, x , 332, 404, 314,
then find the value of (2x – 1)?
...100 180 294 448 648 ?
18, 25, 33, 42, 52, 63, ?
22, 23, 31, 57, 122, 247
20 21 30 55 104 ?
76, 82, 158, 240, 398, 638, ?
3 ? 7 16 71 346
...3720 3842 ? 4092 4220 4350
