Advertisements
Advertisements
प्रश्न
The length of two ropes are in the ratio 7 : 5. Find the length of:
(i) shorter rope, if the longer one is 22.5 m
(ii) longer rope, if the shorter is 9.8 m.
उत्तर
Length of the ropes are in the ratio = 7 : 5
(i) Let the length of shorter rope = x
Length of longer rope = 22.5 m
A.T.Q.
7 : 5 = 22.5 : x
⇒ 7x = 22.5 × 5
⇒ x = `(22.5xx5)/7`
⇒ x = 16.07 m
(ii) Let length of the longer side = x
Length of shoter rope = 9.8 m
A.T.Q.
7 : 5 = x : 9.8
⇒ 5 × x = 9.8 × 7
⇒ x = `(9.8xx7)/5`
⇒ x = 13.72 m
APPEARS IN
संबंधित प्रश्न
Find the reciprocal ratio of 3 : 5
The ratio of the pocket money saved by a boy and his sister is 5:4. If the brother saves Rs 100 more, how much more should the sister save in order to keep the ratio of their savings unchanged ?
Given `(x^3 + 12x)/(6x^2 + 8) = (y^3 + 27y)/(9y^2 + 27)`. Using componendo and dividendo, find x : y.
A field is 80 m long and 60 m wide. Find the ratio of its width to its length.
Divide Rs. 720 between Sunil, Sbhil and Akhil. So that Sunil gets 4/5 of Sohil’s and Akhil’s share together and Sohil gets 2/3 of Akhil’s share.
Check whether the following quantities form a proportion or not?
0.8, 3, 2.4 and 9
Two numbers are in the ratio 9 : 2. If the smaller number is 320, find the larger number.
Ratio of the distance of the school from A’s home to the distance of the school from B’s home is 2 : 1.
(i) Who lives nearer to the school?
(ii) Complete the following table:
Find the fourth term of the proportion whose first, second, and third terms are 18, 27, and 32 respectively.
Which of the following numbers are in continued proportion:
6, 12 and 24
Find the value of x of the following such that the given numbers are in proportion.
45, 135, 90 and x
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?
If a : b = 3 : 11, find (15a – 3b) : (9a + 5b). a
The ratio of income to the expenditure of a family is 7 : 6. Find the savings if the income is Rs 14000.
10 boys can dig a pitch in 12 hours. How long will 8 boys take to do it?
Find the ratio of:
35 minutes to an hour
If a : b = 3 : 5, find (3a + 5b): (7a – 2b).
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 students of a school belong to different religious backgrounds. The number of Hindu students is 288, the number of Muslim students is 252, the number of Sikh students is 144 and the number of Christian students is 72. Find the ratio of the number of Muslim students to the total number of students.
Find the ratio of the following:
30 minutes to 1.5 hours
