Advertisements
Advertisements
Question
Which of the following ratios are in proportion?
Options
3 : 5, 6 : 11
2 : 3, 9 : 6
2 : 5, 10 : 25
3 : 1, 1 : 3
Advertisements
Solution
2 : 5, 10 : 25
Explanation;
Hint:
2 × 25 = 5 × 10
⇒ 50 = 50
APPEARS IN
RELATED QUESTIONS
Using the properties of proportion, solve for x, given `(x^4 + 1)/(2x^2) = 17/8`.
If a/b = c/d prove that each of the given ratio is equal to `(13a - 8c)/(13b - 8d)`
Check whether the following numbers are in continued proportion.
2, 4, 8
If y is the mean proportional between x and y; show that y(x+z) is the mean p roporti ona I between x2+ y2 and y2+ z2
Find two numbers whose mean proportional is 18 and the third proportional is 486.
A labourer earns Rs 1980 in 12 days.
(i) How much does he earn in 7 days?
(ii) In how many days will he earn Rs 2640?
In an army camp, there were provisions for 550 men for 28 days. But, 700 men attended the camp. How long did the provisions last?
Determine if the following are in proportion.
33, 44, 75, 100
Determine if the following ratios form a proportion. Also, write the middle terms and extreme terms where the ratios form a proportion.
25 cm : 1 m and ₹ 40 : ₹ 160
The table, given below, shows the values of x and y, where x is proportional (directly proportional) to y.
| x | A | 24 | 15 |
| y | 12 | B | 20 |
The values of A and B are:
