What is target mean strength (N/mm2) of the M30 grade concre - Exam Yatra

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SSC JE Civil 2017-18 (25 Jan Tech 1)
Civil Engineering
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Civil Engineering

3

M: +1.00/-0.25

What is target mean strength (N/mm²) of the M30 grade concrete, if the standard deviation is 5.0?

[SSC JE Civil 2017-18 (25 Jan Tech 1)]

A 21.75

B 30

C 38.25

D 40.25

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