MCQEasy1 mark
Select the correct option for each of the following questions.
If x, 5.4, 5, 9 are in proportion then x is
Topic: Ratio and proportion
Previous-year question practice database
Try it
Pick an option and check your answer. The full worked answer is below either way.
Answer
Exam answer
(a) x : 5.4 = 5 : 9 ⇒ 9x = 27 ⇒ x = 3.
Explanation
The result follows by applying the formula or geometric property stated in the working and substituting the given values.
In words
x : 5.4 = 5 : 9 ⇒ 9x = 27 ⇒ x = 3.
More from Ratio and Proportion (Including Properties and Uses)
(x + 3), 1, (3x − 7) and −5 are in proportion. The value of x is :2026Using properties of proportion, find the value of 'x':
(6x² + 3x - 5) / (3x - 5) = (9x² + 2x + 5) / (2x + 5) ; x ≠ 02025The given table shows the distance covered and the time taken by a train moving at a uniform speed along a straight track.
The values of x and y are :2024find (a + b) / (a - b)2024Hence using properties of proportion, find a : b.2024The mean proportional between 4 and 9 is :2023