Advertisements
Advertisements
प्रश्न
Choose the correct answer from the given options :
If x, 12, 8 and 32 are in proportion, then the value of x is
पर्याय
6
4
3
2
Advertisements
उत्तर
x, 12, 8, 32 are in proportion, then
x × 32 = 12 × 8 ..(∵ ad = bc)
⇒ x = `(12 xx 8)/(32)` = 3
x = 3
APPEARS IN
संबंधित प्रश्न
Check whether the following numbers are in continued proportion.
2, 4, 8
Find the smallest number that must be subtracted from each of the numbers 20, 29, 84 and 129 so that they are in proportion.
Find the fourth proportional to 1.5, 2.5, 4.5
Write (T) for true and (F) for false in case of the following:
32 kg : Rs 36 : : 8 kg : Rs 9
The weight of 65 books is 13 kg.
(i) What is the weight of 80 such books?
(ii) How many such books weigh 6.4 kg?
If 40 men can finish a piece of work in 26 days, how many men will be required to finish it in 20 days?
If `a/c = c/d = c/f` prove that : (b2 + d2 + f2) (a2 + c2 + e2) = (ab + cd + ef)2
Fill the boxes using any set of suitable numbers 6 : `square` : : `square` : 15
Find the missing number in the box in the proportion:
`square/45 = 16/40 = 24/square`
Are the following statements true?
7.5 litres : 15 litres = 5 kg : 10 kg
