engineering recuitment FCI JE 2022 Mock Test for CE/ME/EE (Phase I & II) Construction Materials and Management Concrete
What is the approximate ratio between the strength of the cement concrete at 7 days and 28 days ?
1
\(1 \over3\)
2
\(1 \over2\)
3
\(3 \over4 \)
4
\(2 \over3\)
5
\(3 \over2\)