If the mean proportion of 6.25 and 0.64 is 'k', then find the value of '2k'.
The ratio of investment of A and B is 2 : 5 and that of B and C is 3 : 7. Find the investment of B if sum of investment of A, B and C is Rs. 33600.
The ratio between the number of books and pencils is 8:5 and the ratio of cost of per book and pencil is 6:5 then find the percentage by which total cos...
Total population of city P and Q is 2320 and 3150 respectively. If the ratio of number of males to females in city is P and Q is 5:3 and 3:2 respectivel...
The average number of elephants, tigers, and lions in a zoo is 78. The average number of elephants and lions is 71. Additionally, the number of tigers i...
P, Q and R together started a business. Seven times the investment of P equals nine times the investment of Q and the capital of Q is twice that of R. F...
84 is divided into two parts in such a way that the fourth part of the first part and the fifth part of the second are in the ratio 1 : 2. The first par...
A bag contains certain number of coins of different denominations. The ratio of the number of Rs. 1 coins to Rs. 2 coins is 4 : 5, respectively and the...
Marks scored by A and B in a test are in the ratio 14:9 respectively. If B had scored 8 more marks, then marks scored by A would be 20% more than that o...
The ratio of number of boys to number of girls of a class was 2:5. If 4 girls were absent, the ratio becomes 3:7. Find total number of students in the c...
