Exercise 1B Question 18 Ratio and Proportion, Indices, Logarithms

Ratio and Proportion, Indices, Logarithms

The numbers 14, 16, 35, 42 are not in proportion. The fourth term for which they will be in proportion is

Exercise 1A Question 1	The inverse ratio of 11 : 15 is	https://youtu.be/lzRzRvoYobo?t=39
Exercise 1A Question 2	The ratio of two quantities is 3 : 4. If the antecedent is 15, the consequent is	https://youtu.be/lzRzRvoYobo?t=77
Exercise 1A Question 3	The ratio of the quantities is 5 : 7. If the consequent of its inverse ratio is 5, the antecedent is	https://youtu.be/lzRzRvoYobo?t=123
Exercise 1A Question 4	The ratio compounded of 2 : 3, 9 : 4, 5 : 6 and 8 : 10 is	https://youtu.be/lzRzRvoYobo?t=181

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