Question
Present average age of A, B and C together is 44
years. Age of B is 12 Years hence from now will be 260% more than age of A. Four years ago from now while age of C after 12 years hence from now will be 50% more than the age of B 20 years ago from now. 4 years hence from now, what will be the ratio of ages of A and C?Solution
Let present age of A, B and C is a, b, and c respectively So a+b+c = 44*3= 132--------(1) And, (b+12) = 3.6*(a-4) 5b+60 = 18(a-4) 18a-5b=132---------(2) And, (c+12) = 1.5*(b-20) 3b-2c=84---------(3) Solving equation 1, 2 and 3 we get a=24, b = 60, and c = 48 Age of A, B 4 years hence now will be 28 and 52 respectively. Required ratio = 28:52 = 7:13
The class NP-complete includes problems that are:
Which of the following is NOT a method for handling deadlocks?
Which of the following statements is true regarding the class NP?
What is a deadlock in a computer system?
Which famous sorting algorithm uses the divide-and-conquer strategy?
Which data structure in a compiler is used for managing information about variables and their attributes?
Which command will help you to find the time of how long the system is being running?
In which case higher bandwidth can be achieved
What is an algorithm?
In the context of ADTs, what does "encapsulation" refer to?