Advertisements
Advertisements
प्रश्न
If p : q = 2 : 5 , q : r = 4 : 3, then find p : r
Advertisements
उत्तर
p : q = 2 : 5 `=> "p"/"q" = 2/5`
q : r = 4 : 3 `=> "q"/"r" = 4/3`
`=> "p"/"q" xx "q"/"r" = 2/5 xx 4/3`
`=> "p"/"q" = 8/15`
p : r = 8 : 15
APPEARS IN
संबंधित प्रश्न
Divide Rs. 1290 in to A, B and C such that A is `2/5` of B and B : C = 4 : 3.
Convert the following percentage to fractions and ratio:
2.5%
Find: The sub-triplicate ratio of 216: 343
If `(2"y"+5"x")/(3"y"-5"x")=2 1/2`, find y, if x = 33
Write the following ratio in the simplest form:
3 weeks : 30 days
A factory produces electric bulbs. If 1 out of every 10 bulbs is defective and the factory produces 630 bulbs per day, find the number of defective bulbs produced each day.
If Azhagan is 50 years old and his son is 10 years old then the simplest ratio between the age of Azhagan to his son is
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?
A doctor reports blood pressure in millimeters of mercury (mm Hg) as a ratio of systolic blood pressure to diastolic blood pressure (such as 140 over 80). Systolic pressure is measured when the heart beats, and diastolic pressure is measured when it rests. Refer to the table of blood pressure ranges for adults.
| Blood Pressure Ranges | |||
| Normal | Prehypertension | Hypertension (Very High) |
|
| Systolic | Under 120 mm Hg | 120-139 mm Hg | 140 mm Hg and above |
| Diastolic | Under 80 mm Hg | 80-89 mm Hg | 90 mm Hg and above |
Manohar is a healthy 37 years old man whose blood pressure is in the normal category.
- Calculate an approximate ratio of systolic to diastolic blood pressures in the normal range.
- If Manohar’s systolic blood pressure is 102 mm Hg, use the ratio from part (a) to predict his diastolic blood pressure.
- Calculate the ratio of average systolic to average diastolic blood pressure in the prehypertension category.
A ratio is a relationship between two quantities of the same kind obtained by:
