Advertisements
Advertisements
Question
An alloy of zinc and copper weighs `12 1/2`kg. if in the alloy, the ratio of zinc and copper is 1 : 4, find the weight of copper in it.
Advertisements
Solution
Weight of alloy = `12 1/2`kg = `25/2`kg.
Given ratio =1 : 4
Sum of ratio =1 + 4 = 5
Weight of copper = `4/5xx25/2`kg = 2 × 5 = 10 kg
RELATED QUESTIONS
The 4th term of a G.P. is 16 and the 7th term is 128. Find the first term and common ratio of the series
Find the reciprocal ratio of e following :
`1/45 : 1/54`
Which of the Following Ratio is Greater ?
3 : 5 and 2 : 11
A rectangular field is 100 m by 80 m. Find the ratio of length to its breadth.
Find the value of x, when 2.5 : 4 = x : 7.5.
If a : b = 3 : 11, find (15a – 3b) : (9a + 5b). a
The boys and the girls in a school are in the ratio 9 : 5. If the total strength of the school is 448, find the number of girls.
A factory produces electric bulbs. If 1 out of every 10 bulbs is defective and the factory produces 630 bulbs per day, find the number of defective bulbs produced each day.
The ratio of 8 books to 20 books is ______.
In a year, Seema earns ₹ 1,50,000 and saves ₹ 50,000. Find the ratio of money that Seema earns to the money she saves.
