When a particular number is subtracted from each of 7, 9, 11 and 15, the resulting numbers are in proportion. The number to be subtracted is :

When a particular number is subtracted from each of 7, 9, 11 and 15, the resulting numbers are in proportion. The number to be subtracted is :
1). 1
2). 2
3). 3
4). 5

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Other Questions

1. If \(p:q = \frac{2}{9}:\frac{1}{3},q:r = \frac{2}{7}:\frac{5}{{14}}\) and \(s:r = \frac{7}{{10}}:\frac{3}{5}\) then p : q : r : s is

2. There are 480 coins in half rupees, quarter rupees and 10 paise coins and their values are proportional to 5:3:1. The number of coins in each case are

3. The ratio of copper and zinc in brass is 13 : 7. How much zinc will be there in 100 kg of brass

4. If A:B = 3:5 and B:C = 4:7, then A:B:C is

5. If Rs. 25,000 is to be divided between A, B and C in the ratio 1/10 : 1/6 : 1/15, then how much will C get (in Rs)?

6. The ratio of ages of father and son is 7:2. Five years ago the product of their ages was 150. What is the age of the father?

7. The ratio of three positive numbers is 2:3:5 and the sum of their squares is 608. The three numbers are

8.  If a dozen mirrors are fallen down. The ratio between broken and unbroken mirrors is:

9.  The average age of two persons A and B is 32 years. After four years, the ratio of the ages of A and B will be 5:13. What is the present age of B ?

10.  The marks obtained by Vijay and Amith are in the ratio 4:5 and those obtained by Amith and Abhishek in the ratio of 3:2. The marks obtained by Vijay and Abhishek are in the ratio of?