Ravi makes steel using only iron ore, coal and labour. Ravi monitors his costs according to certain ratios. The ratio of the cost of iron ore to the cost of coal is 11:4; and the ratio of the cost of coal to the cost of labour is 3:5. What proportion of his total costs is the cost of iron ore (to the nearest whole percentage)? Select the single best answer: A. 51% O B. 66% C. 49% D. 60% E. 33%

Ravi makes steel using only iron ore, coal and labour. Ravi monitors his costs according to certain ratios. The ratio of the cost of iron ore to the cost of coal is 11:4; and the ratio of the cost of coal to the cost of labour is 3:5. What proportion of his total costs is the cost of iron ore (to the nearest whole percentage)? Select the single best answer: A. 51% O B. 66% C. 49% D. 60% E. 33%

Algebra and Trigonometry (6th Edition)

6th Edition

ISBN:9780134463216

Author:Robert F. Blitzer

Publisher:Robert F. Blitzer

ChapterP: Prerequisites: Fundamental Concepts Of Algebra

Section: Chapter Questions

Problem 1MCCP: In Exercises 1-25, simplify the given expression or perform the indicated operation (and simplify,...

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Question

Ravi makes steel using only iron ore, coal and labour. Ravi monitors his costs according to certain ratios. The ratio of the
cost of iron ore to the cost of coal is 11:4; and the ratio of the cost of coal to the cost of labour is 3:5. What proportion of
his total costs is the cost of iron ore (to the nearest whole percentage)?
Select the single best answer:
A. 51%
OB. 66%
C. 49%
D. 60%
E. 33%

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