Gold is 19 times as heavy as water and Copper is 9 times as heavy as water. Calculate the ratio in which these two metals should be mixed so that the mixture is 15 times as heavy as water.
A. 40
B. 41
C. 42
D. 43
Explanation: Using Alligation rule:
Gold (19) | Copper (9)
Mix (15)
Diff: |15-9|=6 | |19-15|=4
Ratio = 6:4 = 3:2. (Options provided do not match calculation).
Related Questions (Any University/Year)
- The ratio of working hours of three workers is 1: 2: 5 . If they worked on a combined total of 112 hours , what is the longest hour did one worker work?
- যদি (x+১) (x-৩) = 0 হয় তাহলে x এর মান কত?
- 50 জন ছাত্রের একটি শ্রেনিতে রূপমের স্থান হচ্ছে শীর্ষ থেকে অষ্টম এবং হাসিবের স্থান হচ্ছে নিচ থেকে বিমতম। তাহলে রূপম ও হাসিবের মাঝে কতজন ছাত্র আছে?
- একটি ক্লাস ২৪ জন ছাত্রের গড় ওজন ৩৬ কেজি।এর সাথে ১ জন শিক্ষকের ওজন যোগ করা হলে গড় ওজন ১ কেজি বৃদ্ধি পায়।শিক্ষকের ওজন কত?
- If a man's weekly salary is Tk. P and he saves Tk. M, what faction of his weekly salary does he spend?
- In a local election X and Y contested. X won the election as the ratio to his votes and those of Y was 4:3 The total number of voters was 5810, of which 910 , did not vote . what is the margin of votes by which Y was defeated?
- If 2n = n², then which of the following must be true?
- On an average Dr. Maruf attends 12 patients per day and Dr. Mehdi attends 16 patients per day. If Dr. Maruf's charge is1 1/2 times of Dr. Mehdi who earns Tk. 72,000 per month, what is the monthly income of Dr. Maruf?
- Two workers, working separately but at the same speed, take hours 40 minutes to complete a particular task, How long will one of these two workers take to complete the same task alone?
- The purchase price of an article is Tk. 48. In order to include 15% of cost for overhead and to provide Tk. 12 profit, the mark-up should be:
- Three business people wish to invest in a new company. Each person is willing to pay one third of the total investment. After careful calculations, they realize that each of them would pay BDT 7,200 less if they could find two more equal investors. How much is the total investment in the new business?
- Mother's age today is thrice as her daughter's . After 10 years it would be just double. How old is the daughter today?
- A vendor bought chocolate at 6 for a taka. How many for a taka must he sell to gain 20% ?
- যদি দুইজন টাইপিস্টের দুই পৃষ্ঠা টাইপ করতে দুই মিনিট সময় লাগে তাহলে ছয় মিনিটে আঠার পৃষ্ঠা টাইপ করতে কতজন টাইপিস্ট লাগবে?
- Stan can run 10 miles per hour, whereas Jack can run only 8 miles per hour.If they start at the same time from the same point and run in opposite directions, how far apart( to the nearest Mile) will they be after 10 minutes?
- Instructions: DO NOT USE CALCULATOR. Figures are not drawn to scale. If x, y and z are positive integers such that when x is divided by y, the remainder is z and when x is divided by z, the remainder is (y-2), then which of the following must be true?
- Out of a total of 1,000 employees at a certain corporation, 52 percent are female and 40 percent of these females work in research. If 80 percent of the total number of employees work in research, how many male employees do NOT work in research?
- ♠️n denotes the number obtained when n is rounded to the nearest 10th. For example ♠️4.31 = 4.3 ♠️0.089 - ♠️1.135 =
- Which game has ascending number of students from class IX to XII?
- What is the value of 'x'? I. \(7^{1/x} + 24^{1/x} = 25^{1/x}\). II. x is a non-negative integer