Advertisements
Advertisements
Question
Find the third proportional of 27 and 9
Solution
Third proportional of 27 and 9
`= (9 xx9)/27 = 3`
APPEARS IN
RELATED QUESTIONS
The work done by (x – 2) men in (4x + 1) days and the work done by (4x + 1) men in (2x – 3) days are in the ratio 3 : 8. Find the value of x.
Find sub-duplicate ratio of (x – y)4 : (x + y)6
The ratio between the number of boys and the number of girls in a class is 4:3 . If there were 20 more boys and 12 less girls, the ratio would have been 2:1. Find the total number of students in
the class.
Find the triplicate ratio of the following :
`sqrt 15 : sqrt 18`
Divide a number into two parts in the ratio 5:7 so that smaller part is 60. Find the number.
If (p - x) : (q - x) be the duplicate ratio of p : q then show that: `1/"p" + 1/"q" = 1/"x"`
Which is greater 4: 5 or 19: 25.
Divide 64 cm long string into two parts in the ratio 5 : 3.
A line is divided into two parts in the ratio 2.5 : 1.3. If the smaller one is 35.1 cm, find the length of the line.
Find the fourth term of the proportion whose first, second, and third terms are 18, 27, and 32 respectively.
In a class, one out of every 5 students pass. If there are 225 students in all the sections of a class, find how many pass?
If x, y, and z are in continued proportion, then which of the following is true:
x : y = x : z
In the example below, find the proportion of the first number to the second.
84, 60
Snehal has a red ribbon that is 80 cm long and a blue ribbon, 2.20 m long. What is the ratio of the length of the red ribbon to that of the blue ribbon?
Choose the correct answer from the given options :
The ratio of number of edges of a cube to the number of its faces is
I have a box which has 3 green, 9 blue, 4 yellow, 8 orange coloured cubes in it.
(a) What is the ratio of orange to yellow cubes?
(b) What is the ratio of green to blue cubes?
(c) How many different ratios can be formed, when you compare each colour to anyone of the other colours?
In a school excursion, 6 teachers and 12 students from 6th standard and 9 teachers and 27 students from 7th standard, 4 teachers and 16 students from 8th standard took part. Which class has the least teacher to student ratio?
The ratio 5:4 is different from the ratio 4:5.
Shivangi is suffering from anaemia as haemoglobin level in her blood is lower than the normal range. Doctor advised her to take one iron tablet two times a day. If the cost of 10 tablets is Rs. 17, then what amount will she be required to pay for her medical bill for 15 days?
Present age of father is 42 years and that of his son is 14 years. Find the ratio of age of father after 10 years to the age of son after 10 years.
