One application of linear equations is what are termed age problems. When solving age problems, generally the age of two different people (or objects) both now and in the future (or past) are compared. The objective of these problems is usually to find each subject’s current age.
How can we solve age problems?
Important Statements and Equations for “Problems based on Ages”:
- If the present age is y, then n times the present age = ny.
- If the present age is x, then age n years later/hence = x + n.
- If the present age is x, then age n years ago = x – n.
- The ages in a ratio a: b will be ax and bx.
What is John’s present age if after 10 years?
Correct option is 4 We are given that John’s age after 10 years (x + 10) is 5 times his age 5 years ago (x-6).
What will be her age 3 years back?
if Sarita’s present age is y years, then her age 3 years back, = her present age – 3 years = y-3 years …
Which of the following is the product of 7 upon 8 and minus 4 upon 21?
Class 8 Question A) -1/6 is the correct answer. (-7/8)X 4/21 =-1/6. This discussion on Which of the following is the product of (-7/8) and 4/21?
What is the most common disease in elderly?
Hypertension, a major contributor to atherosclerosis, is the most common chronic disease of older adults (23). Isolated systolic hypertension is particularly common among older adults and is associated with mortality even at advanced ages.
How do you solve age problems?
If the age problem involves the ages of two or more people then using a table would be a good idea. A table will help you to organize the information and to write the equations. This is shown in the examples involving more than one person.
How do you solve age word problems?
Here’s a run down on what you need to do for a typical age word problem, with a little example. Read the problem carefully. Get rid of clutter. Identify key variables (unknowns). Eliminate unneeded variables. Use the text of the problem to write equations. Solve the equation. Find the remaining variables.
What problems do old people face?
Findings reveal that majority of the elderly, both male and female, are unhealthy. The most common health problems aged people face include eye sight, hearing, joint pains, nervous disorders, weakness, heart complaints, asthma, tuberculosis, skin diseases, urinary problems and others.
