Advertisements
Advertisements
Question
The costs of the two articles are in the ratio 7 : 4. If the cost of the first article is Rs. 2,800; find the cost of the second article.
Advertisements
Solution
Ratio in the cost of two articles = 7 : 4
Cost of first article = Rs. 2800
Let cost of the second article = x
7 : 4 = 2800 : x
⇒ `7/4=2800/"x"`
⇒ 7 × x = 2800 × 4
⇒ x = `(2800xx4)/7=1600`
∴ Cost of second article = Rs. 1600
APPEARS IN
RELATED QUESTIONS
Convert the following percentage to fractions and ratio:
2.5%
A man's monthly inoome is Rs 5,000. He saves every month a minimum of R~ 800. Find the ratio of his:
monthly savings to monthly expenses.
In a mixture of 126 kg of milk and water, milk and water are in ratio 5 : 2. How much water must be added to the mixture to make this ratio 3 : 2?
Is the ratio of 6 g and 15 g same as the ratio of 36 cm and 90 cm ?
Find the mean proportional between 3 and 27
Find the value of x of the following such that the given numbers are in proportion.
14, 42, x and 75
The length of two ropes are in the ratio 7 : 5. Find the length of:
(i) shorter rope, if the longer one is 22.5 m
(ii) longer rope, if the shorter is 9.8 m.
In an examination, the number of those who passed and the number of those who failed were in the ratio of 3 : 1. Had 8 more appeared, and 6 less passed, the ratio of passed to failures would have been 2 : 1. Find the number of candidates who appeared.
Antony brushes his teeth in the morning and night on all days in a week. Shabeen brushes her teeth only in the morning. What is the ratio of the number of times they brush their teeth in a week?
Out of 30 students in a class, 6 like football, 12 like cricket and remaining like tennis. Find the ratio of number of students liking cricket to total number of students.
