Question
The ages of A, B and C are in the ratio 6:8:9 and the
sum of their ages is 69. Find the ratio of 9 years ago B’s age to C’s age after 9 years.Solution
Let the present age of A, B and C be 6x, 8x and 9x respectively. According to the question, => A + B + C = 69 => 6x + 8x + 9x = 69 => x = 3 B’s age 9 years ago = 8x – 9 = 24 – 9 = 15 C’s age after 9 years = 9x + 9 = 27 + 9 = 36 Required ratio = 15 : 36 = 5:12
The ratio of zinc and copper in a brass pieces is 6:7. How much zinc will be there in 390 kg of such a piece?
If the third proportion of 8 and 16 is “0.5k”, then find the value of (k − 4) : (k + 14).
Ratio between two numbers is 11:13 and their difference is 26. Find the sum of the given two numbers.
The sum of three numbers is 188. If the ratio of the first to the second is 2:5 and that of second to the third is 7:9 then the second number is?
An amount of Rs. 900 is shared among A, B and C such that A receives Rs. 150 more than B. B gets Rs. 70 more than C. What is the share of C?
In a clothing store, the ratio of shirts to trousers to T-shirts is 2:6:5. After Y trousers are sold, the ratio of shirts to trousers changes to 4:9. Th...
Find the fourth proportion of (3k - 5), (6k - 10) and (9k - 15). (Note: 'k' is the largest single-digit prime number.)
Two numbers are in the ratio 5 ∶ 9. If each number is decreased by 8, the ratio becomes 1 ∶ 3. The numbers are:
Rs. 11200 was divided among A, B and C in the ratio 2:3:3. B kept Rs. 1000 for himself, gave Rs. 600 to his mother and divided the remaining money among...
Find the third proportional to 12 and 42?
Relevant for Exams:
