Question
The current age of 'P' is 40%
more than the current age of 'Q'. Seven years from now, the ratio of their ages will be 14:11. What was the age of 'P' 3 years ago?Solution
ATQ, Let present age of Q = ‘5x’ years So, present age of P = 1.40 × 5x = ‘7x’ years ATQ, {(7x + 7)/(5x + 7)} = (14/11) Or, 77x + 77 = 70x + 98 Or, 7x = 21 So, x = 3 So, present age of P = 7x = 7 × 3 = 21 years Therefore, age of P, 3 years ago from now = (21 – 3) = 18 years
Non-spherical errors are related to
Which of the following statements is true
When a firm operates with excess capacity
In which of the following models, price is driven down to marginal cost?
What is the minimum asset size required for a company to be classified as a Core Investment Company (CIC) in India?
Assume that there are equal numbers of male and female students in a university. Of all male students, 10 per cent major in economics; and of ...
Which of the following statements accurately describes the Jarque-Bera (JB) test criterion?
Which of the following is not correct?
If rxy = 0.75, then ryx will be:
