The number of students who study Hindi and Chemistry = 16 + 4 = 20
By mistake, instead of dividing Rs. 564 among P, Q and R in the ratio 1/3 : 1/4 : 1/5 it was divided in the ratio of 3 : 4 : 5. Who gains the most and b...
The ratio of number of balls in bags A & B is 3:4. Seven Balls are taken from bag B and are dropped in bag A, number of balls are equal in each bag now...
Three numbers are in ratio 4:5:7. If the sum of the squares of those three numbers is 360 then find the sum of the three numbers.
There are 15 numbers such that average of first 12 numbers is 30 while the average of last five numbers is 50. Find the 12th number, if the ratio betwee...
The ratio of the number of boys to the number of girls in a school of 640 students, is 5 : 3. If 30 more girls are admitted in the school, then how many...
A bag contains 10-paisa, 20-paisa and 50-paisa coins in the ratio of 5:8:7, respectively. If the total amount in the bag is Rs. 35, then find 40% of the...
A and B are solutions of acid and water. The ratios of water and acid in A and B are 4:5 and 1:2, respectively. If x litres of A is mixed with y Litres ...
The speeds of three cars are in the ratio of 3: 2: 4. The ratio of respective time taken by these cars to travel the same distance is:
Three containers have their volumes in the ratio 3 : 4: 5. They are full of mixtures of milk and water. The mixtures contain milk and water in the ratio...
