Indian Head Patents Office is located inÂ
The Head Office of the Patent office is at Kolkata and its Branch offices are located at Chennai, New Delhi and Mumbai.
18, 25, 33, 42, 52, 63, ?
3Â Â Â Â Â Â Â Â Â Â Â Â Â Â 25Â Â Â Â Â Â Â Â Â Â Â 173Â Â Â Â Â Â Â Â Â 1041Â Â Â Â Â Â Â 5201Â Â Â Â Â Â Â 20809
10       a Â...
800 400 600 1500 ? 23625
...16, 8, 8, ?, 24, 60
21, 63, 315, ?, 19845, 218295
5 29 ? 569 1703 3401
...13     26      78      ?     468     936
...If 10 9 38 x 5428
Then, 2x² + 1 = ?
...640 320 160 ? 40 20
12Â Â Â Â Â Â Â Â Â Â 8Â Â Â Â Â Â Â Â Â Â Â Â Â 6Â Â Â Â Â Â Â Â Â Â Â Â Â 12Â Â Â Â Â Â Â Â Â Â 4.5Â Â Â Â Â Â Â Â Â 15
18Â Â Â Â Â Â Â...