The compressive strength of a good Portland cement and standard sand mortar after 3 days of curing should not be less than ?

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Ritu Nagar

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Q. The compressive strength of a good Portland cement and standard sand mortar after 3 days of curing should not be less than ?

(A) 11.5 MN/m²
(B) 17.5 MN/m²
(C) 7 MN/m²
(D) 21 MN/m²

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✅ Correct Answer: (A) 11.5 MN/m²

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