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The silk fibres are held together in cocoon by a substance known as sericin which is secreted by middle gland of the salivary gland (silk glands) of silk worm.
7 8 ? 13 17 22 28
...12 17 44 147 ? 3065 18420
...17, 19, 41, 127, 513, ?
24, 35, 57, 90, 134, ?
70, 69, 73, 64,80, 55, ?
What will come in place of the question mark (?) in the following series?
24, 25, 34, 59, 108, 189, ?
13, 14, 23, 48, 97, 178, ?
25, 30, 50, 60, 80, ?
79 86 76 89 73 ?
...96, 144, ?, 324, 486, 729, 1093.5
