Advertisements
Advertisements
प्रश्न
Find the third proportional to Rs. 3, Rs. 12
Advertisements
उत्तर
Let x be the third proportional to Rs. 3 and Rs. 12
then Rs. 3 : Rs. 12 : : Rs. 12 : x
∴ x = `(12 xx 12)/(3)`
= 48
∴ Third proportional = Rs. 48.
APPEARS IN
संबंधित प्रश्न
If a, b, c and d are in proportion prove that `sqrt((4a^2 + 9b^2)/(4c^2 + 9d^2)) = ((xa^3 - 4yb^3)/(xc^3 - 5yd^3))^(1/3)`
If `(4m + 3n)/(4m - 3n) = 7/4`, use properties of proportion to find `(2m^2 - 11n^2)/(2m^2 + 11n^2)`
Find the mean proportional of the following:
17.5, 0.007
What quantity must be added to each term of the ratio a + b: a - b to make it equal to (a + b)2 : (a - b)2 ?
What number must be added to each of the numbers 5, 11, 19 and 37 so that they are in proportion?
Find the value of x in each of the following proportion:
27 : x : : 63 : 84
If a, b, c and d are in proportion, prove that: `(a + c)^3/(b + d)^3 = (a(a - c)^2)/(b(b - d)^2)`
Find two numbers whose mean proportional is 16 and the third proportional is 128.
If b : a = c : d, then a, b, c, d are in proportion.
10 g of caustic soda dissolved in 100 mL of water makes a solution of caustic soda. Amount of caustic soda needed for 1 litre of water to make the same type of solution is ______.
