Question
At the time of 'Binny's birth, the age of 'Ankush' was
twice the present age of 'Binny'. Fourteen years from now, if the ratio of their ages is 25:13, find the current age of 'Ankush'.Solution
ATQ, Let the present age of ‘Binny’ be ‘a’ years Therefore, age of ‘A’ at the time of birth of ‘Binny’ = 2a years Present age of ‘Ankush’ = 2a + a = 3a years According to the question, {(3a + 14)/(a + 14)} = 25/13 39a + 182 = 25a + 350 Or, 14a = 168 Or, a = 12 Therefore, present age of ‘Ankush’ = 3a = 36 years
What does the following code do?
x = [1, 2, 3]
y = [4, 5, 6]
z = x + y
Binary relationship has how many participating entities?
Which component of RDBMS allows users and applications to interact with the database through SQL queries?
Which circuit configuration has a single path for current flow?
Which type of tree structure is optimized for sequential access and range queries?
Simplify the following Boolean expression using Boolean algebra laws:
F = (A + B) * (A' + C) * (B + C)
What is the main purpose of a digital signature?
Which of the following is a key function of the network layer?
syntax of loops in shell scripting?
Default value of boolean variable in an array
