Advertisements
Advertisements
प्रश्न
Find the mean proportion of the following :
24 and 6
Advertisements
उत्तर
Let x be the mean proportion
24 : x : : x : 6
⇒ x × x = 24 × 6
⇒ x2 = 144
⇒ x = `sqrt 144`
⇒ x = 12
The mean proportion is 12.
APPEARS IN
संबंधित प्रश्न
Given four quantities a, b, c and d are in proportion. Show that: (a – c)b2 : (b – d)cd = (a2 – b2 – ab) : (c2 – d2 – cd)
Find the fourth proportional to 3, 12, 15
Write (T) for true and (F) for false in case of the following:
51 : 68 : : 85 : 102
The ratio 92 : 115 in its simplest for is
In covering 111 km, a car consumes 6 L of petrol. How many kilometers will it go to 10 L of petrol?
Find the missing number in the box in the proportion:
`8/square = 3.2/4`
Find the missing number in the box in the proportion:
`square/45 = 16/40 = 24/square`
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 ______.
A recipe calls for 1 cup of milk for every `2 1/2` cups of flour to make a cake that would feed 6 persons. How many cups of both flour and milk will be needed to make a similar cake for 8 people?
Write True (T) or False (F) against the following statement:
21 : 6 : : 35 : 10
