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Question:

A cubic meter of concrete mix contains 420kilograms of cement,150 kg of stone and 120 kg of sand.?

What is the total weight of a cubic meter of the mix? what part is cement? stone?sand? add these fractional amounts.what is the result? 420+150+120=690Kg, total 690 -420 used what part =n 420/690divided by 10/10=42/69divided by3/3=14/23 cement, how do you figure out stone and sand?

Answer:

120 Kg In Stone
150 Kg To Stone
Cement = 420/690 =14/23 Stone = 150/690 = 5/23 Sand = 120/690 = 4/23
Total Weight=420+150+120=690 kg Part of cement by weight=420/690=14/23 Part of stone by weight=150/690=5/23 Part of sand by weight=120/690=4/23 k
Cement = 420 / 690 = 14 / 23 Stone = 150 / 690 = 5 / 23 Sand = 120 / 690 = 4 / 23 Total fractions = 14 / 23 + 5 / 23 + 4 / 23 = 23 / 23 = 1

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