ibm Interview Logical Reasoning Number Series

(#M40157680) IBM QUESTION Series Keep an EYE Keep an eye puzzle
1.30.5,31,30,0,67.2,67,70,100,183.7,?

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ibm Other Question
1) Two out of five employees are capable of doing certain task. 60% of 5 employees, including the two who are capable are assigned to a project involving the task. What % of employees are not capable to the project?

2) A company bought twice as many as small envelopes than large envelopes. It is used up to 6/11 of small envelopes and 1/3 of large envelopes. What fraction was left unused?
3) A company has a employees of 30 csr on 1st shift and another 30 on second shift. On Monday 30 of them were taking calls. on Tuesday also 30 were taking calls and on Wednesday 40 of them take calls. On average what fraction of these csr’s were taking calls during these 3-days?

5) Creating a certain alloy requires 15% copper, 25% lead and 60% silver. If 5kgs of lead is present in that alloy. For what % of silver is added in the mixture?

6) There are 30 employees who are working in 4 modules. Instruction lead group pays $2500 per module and for 10 employees with room rental services and online team pays $200 per module for each employee and has the savings of $8000. What are the room rental services?

8) A computer hard disk has a storage capacity of 2GB. The hard disk is partitioned into 3 sections.
Section A has 900mb. Section B has 2/3 of amount of section A, minus 1/6 of amount of section C. section C has 3 times the amount of section B, minus the amount of section A, what % of hd space has been allocated to section A & C ? (note: 1GB=1000MB Can any one tell me what do they do in documentation round of IBM?
What do i need to take during the process?