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What is the fourth proportional to 4, 9, 12?
What is the mean proportional between 4 and 9?
Three numbers are in the ratio 1:2:3 and their HCF is 12. The numbers are:
If $A:B = 1:2, B:C = 3:4$ and $C:D = 5:6$, find $A:D$.
If $A$ is $25%$ more than $B$, what is the ratio $A:B$?
The ratio of interior angles of a triangle is 2:3:4. The largest angle is:
A sum of money is divided into two parts in the ratio 5:3. If the first part is Rs 20 more than the second part, find the total sum.
If 40% of a number is equal to two-third of another number, what is the ratio of first number to second number?
The speed of three cars are in the ratio 2:3:4. The ratio of time taken by these cars to travel the same distance is:
Three numbers are in the ratio 2:3:5 and the sum of their squares is 608. Find the numbers.
A vessel contains 40L milk. 4L is removed and replaced with water. This process is repeated once more. The final ratio of milk to water is:
Two numbers are in the ratio 3:5. If 9 is subtracted from each, the new numbers are in the ratio 12:23. The smaller number is:
In a bag, there are Rs 1, 50p, and 25p coins in the ratio 5:6:8. If the total amount is Rs 210, find the number of 50p coins.
The ratio of income of A, B, C is 3:7:4 and their expenditure ratio is 4:3:5. If A saves Rs 300 out of Rs 2400, find savings of C.
A sum of money is divided among A, B, C and D in ratio 5:2:4:3. If C gets Rs 1000 more than D, what is B's share?
If $x:y = 3:2$, then find the ratio of $(2x^2 + 3y^2) : (3x^2 - 2y^2)$.
Gold is 19 times as heavy as water and copper is 9 times as heavy as water. In what ratio should these be mixed to get an alloy 15 times as heavy as water?
The ratio of the volume of a sphere to the volume of a cylinder which has the same radius and height equal to the diameter of the sphere is: