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प्रश्न
State true or false :
A ratio equivalent to 5 : 4 is 240 : 192
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उत्तर
True
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संबंधित प्रश्न
Find the ratio of the speed of a cycle 15 km per hour to the speed of scooter 30 km per hour.
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In the example below, find the ratio of the first number to the second.
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Find the duplicate ratio of 2 : 3
If (3x + 1) : (5x + 3) is the triplicate ratio of 3 : 4, find the value of x.
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Find the simplified form of the following ratio.
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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.
