Advertisements
Advertisements
Question
If x : y = 2 : 3 and y : z = 5 : 7, find x : y : z.
Advertisements
Solution
x : y = 2 : 3
`= 2/3 : 1` (Dividing by 3)
and y : z = 5 : 7
`= 1 : 7/5` ...(Dividing by 5)
∴ x : y : z = `2/3 : 1 : 7/5`
= 10 : 15 : 21 ...(Multiplying by 3 × 5 = 15)
APPEARS IN
RELATED QUESTIONS
By increasing the cost of entry ticket to a fair in the ratio 10 : 13, the number of visitors to the fair has decreased in the ratio 6 : 5. In what ratio has the total collection increased or decreased?
If 3A = 4B = 6C, find: A : B : C.
A woman reduces her weight in the ratio 7 : 5. What does her weight become if originally it was 84 kg?
If `x/a = y/b = z/c` show that: `x^3/a^3 + y^3/b^3 + z^3/c^3 = (3xyz)/(abc)`.
If p + r = 2q and `(1)/q + (1)/s = (2)/r`, then prove that p : q = r : s.
The ratio of zinc and copper in an alloy is 7 : 9. If the weight of copper in the alloy is 11.7 kg find the weight of zinc in it.
Choose the correct answer from the given options :
When the number 210 is increased in the ratio 5 : 7, the new number is
One of the terms in a ratio cannot be 1
If a bus travels 160 km in 4 hours and a train travels 320 km in 5 hours at uniform speeds, then the ratio of the distances travelled by them in one hour is ______.
Given below is a Mathematical term.
Find the ratio of consonants to vowels in the term.
