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In building an Airliner in 1978, the materials cost 45% of the total, wages 42% and other expenses 13%. By 1979 the cost of materials had increased by 8%, wages had gone up by one-seventh, but other expenses were reduced by 10%. Find the percentages increases in the cost of the Airliner.

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In building an Airliner in 1978, the materials cost 45% of the total, wages 42% and other expenses 13%. By 1979 the cost of materials had increased by 8%, wages had gone up by one-seventh, but other expenses were reduced by 10%. Find the percentages increases in the cost of the Airliner.






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