Free Online 11+ Maths Tutoring – Open to All
Free Online 11+ Maths Tutoring – Open to All Hi! I’m Rithvik Muthuvelu , a GCSE student at King Edward’s School, Birmingham , and I’m offering free weekly online maths sessions to help students prepare for the 11+ entrance exams . These sessions are open to anyone who wants to improve their maths skills—no school restrictions. What You’ll Get Free weekly online maths classes Focused 11+ preparation : problem-solving, arithmetic, word problems, exam strategies Small-group format for better interaction Ideal for Year 4 and Year 5 students How to Join Weekly Session: Saturdays at 2:00 PM Google Meet Link: https://meet.google.com/nrk-iwmh-gij Contact Email: rithvikmu1@gmail.com If your child is preparing for the 11+ and would like extra support, feel free to join the class or get in touch. Looking forward to helping more students learn and grow! — Rithvik Muthuvelu
First we need to set the variables:
ReplyDeleteLet Anne be 'a'. Let Bob be 'b'. Let David be 'd'.
Now we can create a formula:
a + b + d = 21.
Next we need to substitute the variables for one after calculating it. This may sound confusing but it will make sense:
a = 2d This is because the question states that Anne's age is twice that of David's.
b = 2a This is because the question also states Anna's age is half that of Bob's.
This then means that b = 4d when you substitute the a from the first equation into the second.
Now, remember that formula we created earlier? We can use that now by substituting the values that we've calculated:
2d + 4d + d = 21
7d = 21
d = 3
Now it may seem like we're done, but remember, the question asks for Bob's age. This means we substitute 4 * d into our new value of d and we get 4 * 3, which is 12. NOW, we're done