Joseph gifted Rs. 20000 to his wife and some money to his three children aged 12,14 and 16 years in the ratio of their ages. If he gave Rs. 3000 to his youngest child, then how much money he gifted to his family?

Arrange the given ratios in descending order:

a. 7 : 15

b. 15 : 23

c. 17 : 25

d. 21 : 39

Choose the correct answer from the options given below:

If $5A = 4B$, $7B = 3C$ and $2C = 7D$, then A : D is :

Ankit, Ashish and Arun earned a profit of Rs. 12 lakh from a year from their business. Ankit retained Rs. 6 lakh, while Ashish and Arun each kept Rs. 3 lakh. What is the ratio of their profits from the business?

If P: Q: R = 2:3:4, then find: $\frac{P}{Q}:\frac{Q}{R}:\frac{R}{P}$

Two numbers are in the ratio 3: 5. If 10 is added to each number, then the ratio becomes 5: 7. Find the numbers.

Read the information given below carefully and answer the question that follows:

(A) The mean of 20 observations is 17. On checking, it was found that two observations were wrongly copied as 3 and 6. If the wrong observations are replaced by correct values 8 and 9, then the correct mean will be 16.4.

(B) The ratio of $4^{3.5} : 2^5$ is same as 4 : 1

(C) The ratio of 1.5 : 2.5 can also be written as 3 : 5

(D) If : 2A = 3B = 4C, then, A : B : C is equal to 6 : 4 : 3

Choose the correct option: