Question

In the question, two quantities I and II are given. You have to solve both the quantities to establish the correct relation between Quantity-I and Quantity-II and choose the correct option. Quantity-I: The present age of A is 4 years more than the present age of
B. Six years ago, the ratio of the age of A to that of B was 5:4. Find the present age of A (in years). Quantity-II: The average age of a group of 5 students is 18 years. When a new student joins the group, the average age becomes 19 years. Find the age of the new student (in years)?

Q: Answer-In the question, two quantities I and II are given. You have to solve both the quantities to establi...

Quantity I Let present age of B x years Present age of A x 4 years ATQ, x 4 - 6 x - 6 5 4 Or, x - 2 x - 6 5 4 Or, 4x - 8 5x - 30 Or, 5x - 4x 30 - 8 Or, x 22 Present age of A 22 4 26 years So, Quantity I 26 Quantity II Sum of ages of 5 students 5 18 90 years Sum of ages of 6 students 6 19 114 years Age of new student 114 - 90 24 years So, Quantity II 24 Therefore, Quantity I Quantity II Hence, the correct answer is A.