Question
The average of the current ages of Ram and his father is
44 years. In six years, Ram's age will be half of his father's age four years ago. What is the difference between the present ages of Ram and his father?Solution
Sum of present ages of Ram and his father = 44 X 2 = 88 years Let the present age of Ram = 'x' years Then, present age of his father = (88 - x) years According to the question, (x + 6) = (88 - x - 4) ÷ 2 Or, (x + 6) X 2 = (84 - x) So, 2x + 12 = 84 - x So, x = (84 - 12) ÷ 3 = 24 So, present age of Ram's father = 88 - 24 = 64 years Therefore, difference between their ages = 64 - 24 = 40 years
What is the respective ratio of the number of people prefer to go Thailand in 2013, 2015 and 2017 to the number of people prefer to go Singapore in the ...
Study the given table to answer the question that follows.
The table shows the number of students who appeared in the 12th Board Examination f...
In the bar graph, in which year is the sum of the students f...
In an examination, a candidate is required to pass all six different subjects. The number of ways he can fail is:
What is the difference between the number of ASUS laptops sold in all the given years and the number of HP laptops sold in 2015, 2018 and 2020 together?
In 2012, no. of students appearing for IMS was 5%. However each year no of students increases by 10% in number. What will be the difference between the ...
In the year 2013, the student appearing in IMS is what percent of the students appearing in UIT and XLRI together in that year? ( approx )
...
Total number of HP laptops sold in 2015 and 2016 together is approximately what percent more of the total number of HP laptops sold in 2017 and 2018 tog...
