Advertisements
Advertisements
Question
Check whether the following quantities form a proportion or not?
3x, 7x, 24 and 56
Advertisements
Solution
3x, 7x, 24 and 56
If these are in proportion, then
3x × 56 = 7x × 24
⇒ 168 x = 168 x
which is true.
Hence 3x, 7x, 24 and 56 are in proportion.
APPEARS IN
RELATED QUESTIONS
if `x/a = y/b = z/c` prove that `(ax - by)/((a + b)(x - y)) + (by - cz)/((b + c)(y - z)) + (cz - az)/((c + a)(z - x)) = 3`
Solve for x: `(3x^2 + 5x + 18)/(5x^2 + 6x + 12) = (3x + 5)/(5x - 6)`.
A profit of Rs 2,500 is to be shared among three persons in the ratio 6 : 9 : 10. How much does each person get?
The ratio of the sale of eggs on a Sunday and that of the whole week at a grocery shop was 2 : 9. If the total value of the sale of eggs in the same week was Rs 360, find the value of the sale of eggs that Sunday.
In the example below, find the ratio of the first number to the second.
84, 60
If (4x2 + xy) : (3xy – y2) = 12 : 5, find (x + 2y) : (2x + y).
Express the following ratio in the simplest form:
186 : 403
Out of 50 students in a class, 30 are boys. Find the ratio of number of boys to the total number of students
A rectangular sheet of paper is of length 1.2 m and width 21 cm. Find the ratio of width of the paper to its length.
The earth rotates 360° about its axis in about 24 hours. By how much degree will it rotate in 2 hours?
