Advertisements
Advertisements
प्रश्न
Find the value of x of the following such that the given numbers are in proportion.
45, 135, 90 and x
Advertisements
उत्तर
∵ 45, 135, 90 and x are in proportion
∴ `45/135=90/"x"`
⇒ 45 × x =90 × 135
⇒ x = `(90xx135)/45=270`
∴ x = 270
संबंधित प्रश्न
The work done by (x – 2) men in (4x + 1) days and the work done by (4x + 1) men in (2x – 3) days are in the ratio 3 : 8. Find the value of x.
If a : b = 5 : 3, show that (5a + 8b) : (6a – 7b) = 49 : 9.
Three persons start a business and spend Rs. 25,000; Rs. 15,000 atid Rs. 40,000 respectively. Find the share of each out of a profit of Rs. 14,400 in a year
If P : Q = `1/2 : 1/3` and Q : R = `1 1/2 : 1 1/3`, find P : R.
Which of the following numbers are in continued proportion:
15, 45 and 48
Are the following numbers in proportion 32, 40, 48 and 60?
In the example below, find the ratio of the first number to the second.
84, 60
Out of 50 students in a class, 30 are boys. Find the ratio of number of boys to the total number of students
Mathematics textbook for Class VI has 320 pages. The chapter ‘symmetry’ runs from page 261 to page 272. The ratio of the number of pages of this chapter to the total number of pages of the book is ______.
See the figure and find the ratio of number of circles to all the figures inside the rectangle.
