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Wanyama bought maize flour, sorghum and millet at sh 12, sh 15 and sh 18 per kg respectively. He mixes them in the ratio 1...

Wanyama bought maize flour, sorghum and millet at sh 12, sh 15 and sh 18 per kg respectively. He mixes them in the ratio 1 : 2 : x respectively. After selling the mixture at sh 19.20 he made a profit of 20%. Find the value of x.

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Kavungya answered the question on November 7, 2019 at 06:02

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Next: Expand (1 + 1/2x)⁵ upto the term on x³, use the expansion to estimate the value of (1.05)⁵ correct to 4 significant figures.

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