The observed time for an element is 0.7 minutes, The rating factor is 90%. All the allowances put together are 20% of normal time .Calculate the Standard time in minutes.

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SDSC ISRO Technical Assistant Mechanical 4 June 2022 Official Paper
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  1. 0.756
  2. 0.856
  3. 0.5
  4. 2.0

Answer (Detailed Solution Below)

Option 1 : 0.756
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Detailed Solution

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Concept:

Normal time =  × observed time

Standard time = normal time × 

Calculation:

Normal time = 0.7 × (90/100)

∴ Normal time = 0.63 min

Standard time = 0.63 × (1 + 0.2)

∴ Standard time = 0.756 minutes

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