Which is the largest uranium producing country in the

The ratio of A to B is 3: 4 and that of B to C is 1: 2. If B equals 720, A equals 

If the third proportion of 16 and 20 is “0.5k”, then find the value of (k − 20) : (k + 10).

If A : B = 7:4 and A is 18 more than B then find the sum of A and B.

A sum of money is divided in the ratio of 5:9. If the smaller part is 405. Find the larger part.

Two numbers are in the ratio 6:5. After adding 2 and 4 to them respectively the ratio becomes 2:3. Find the bigger number.

What is the fourth proportional to 3, 8, 15?

A box contains the coins of 5p, 10p and 25p are in the ratio 3:4:6. If there is Rs. 82 in all, how many 10p coins are there?

The ratio of two numbers is 5:9. 150% of the first number is equal to the 80% of the second number. Find the sum of both numbers.

The ages of A, B and C are in the ratio of 5:4:8 respectively. If the sum of their ages is 51 years, then find the age of B.