Advertisements
Advertisements
प्रश्न
A woman reduces her weight in the ratio 7 : 5. What does her weight become if originally it was 84 kg?
Advertisements
उत्तर
Let the reduced weight be x.
Original weight = 84kg
Thus, we have
84 : x = 7 : 5
⇒ `84/"x" = 7/5`
⇒ 84 x 5 = 7 x x
⇒ x = `(84 xx 5)/7`
⇒ x = 60
Thus, her reduced weight is 60 kg.
संबंधित प्रश्न
Find the number which bears the same ratio to `7/33` that `8/21` does to `4/9`.
If A : B = 2 : 5 and A : C = 3 : 4, find: A : B : C.
₹120 is to be divided between Hari and Gopi in the ratio 5 : 3. How much does each get?
If `(2"y"+5"x")/(3"y"-5"x")=2 1/2`, find x, if y = 70
Do the ratios 2 kg : 80 kg and 25 g : 625 g form a proportion?
Find the compounded ratio of: (a – b) : (a + b), (a + b)2 : (a2 + b2) and (a4 – b4) : (a2 – b2)2
Fill in the place holder:
In the following figure, what is the ratio of the areas of
- shaded portion I to shaded portion II?
- shaded portion II to shaded portion III?
- shaded portions I and II taken together and shaded portion III?
See the figure and find the ratio of number of triangles to the number of circles inside the rectangle.
In a year, Seema earns ₹ 1,50,000 and saves ₹ 50,000. Find the ratio of money that she saves to the money she spends.
