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प्रश्न
If 4, x and 9 are in continued proportion, find the value of x.
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उत्तर
4, x and 9 are in continued proportion
⇒ 4 : x = x : 9
⇒ x2 = 9 x 4
⇒ x = `sqrt36`
x = 6
संबंधित प्रश्न
Find sub-triplicate ratio of 64 : 27
Express the given ratio in its simplest form: 1.5 : 2.5
Rohit goes to school by car at 60 km per hour and Manoj goes to school by scooty at 40 km per hour. If they both live in the same locality, find the ratio between the time taken by Rohit and Manoj to reach school.
Which ratio is smaller:
`9/17` or `8/15`
Find the value of x of the following such that the given numbers are in proportion.
14, 42, x and 75
Find the sub-duplicate ratio of 9 : 16
If a : b = 3 : 11, find (15a – 3b) : (9a + 5b). a
|
Distance from Mary’s home to school (in km.)
|
10 | 4 | |||
|
Distance from John’s home to school (in km.)
|
5 | 4 | 3 | 1 |
12 hours : 30 hours = 8 km : 20 km
Fill in the following blanks:
`15/18 = square/6 = 10/square = square/30`
[Are these equivalent ratios?]
