Advertisements
Advertisements
प्रश्न
If P : Q = `1/2 : 1/3` and Q : R = `1 1/2 : 1 1/3`, find P : R.
उत्तर
P : Q = `1/2 : 1/3`
∴ `"P"/"Q" = 1/2 xx 3/1 = 3/2`
and Q : R = `1 1/2 : 1 1/3 = 3/2 : 4/3`
∴ `"Q"/"R" = 3/2 xx 3/4 = 9/8`
Now `"P"/"Q" xx "Q"/"R" = 3/2 xx 9/8`
`=> "P"/"R" = 27/16`
∴ P : R = 27 : 16
APPEARS IN
संबंधित प्रश्न
If m : n is the duplicate ratio of m + x : n + x; show that x2 = mn.
Find the value of x, if: (2x + 1) : (3x + 13) is the sub-duplicate ratio of 9 : 25.
Find the compounded ratio of the following:
(m-n):(m+n), (m+n)2 : (m2+n2) and (m4 - n4): (m2-n2) 2
Find the triplicate ratio of the following :
3 : 5
Find the sub-duplicate ratio of the following :
c
Two numbers are in the ratio 5 : 7 and the difference of their squares is 600. Find the numbers.
If `"a"/("b + c") = "b"/("c + a") = "c"/("a + b")` , then prove that a(b - c) + b(c-a) + c (a - b) = 0
If (x + 3) : (4x + 1) is the duplicate ratio of 3 : 5, find the value of x.
If `"a"/"b" = "c"/"d"`, show that: `(a^3c + ac^3)/(b^3d + bd^3) = ("a" + "c")^4/("b" + "d")^4`
A bag contains ₹ 1,600 in the form of ₹10 and ₹20 notes. If the ratio between the numbers of ₹10 and ₹20 notes is 2 : 3; find the total number of notes in all.
Which ratio is smaller:
`9/17` or `8/15`
If (4x + 3y) : (3x + 5y) = 6 : 7, find y, if x = 27
The ratio of the length and the width of a rectangular sheet of paper is 8 : 5. If the width of the sheet is 17.5 cm; find the length.
Find the ratio of the first quantity to the second.
1 litre, 250 ml
Find the ratio of:
35 minutes to an hour
3:33 = 33:333
A car can travel 240 km in 15 litres of petrol. How much distance will it travel in 25 litres of petrol?
See the figure and find the ratio of number of circles to all the figures inside the rectangle.
Find the ratio of the following:
40 cm to 1.5 m
In a year, Seema earns ₹ 1,50,000 and saves ₹ 50,000. Find the ratio of money that Seema earns to the money she saves.
