Here it is - the ultimate test of your mathematics skills!!!
How it works
- I will post a maths question daily
- Members will try and solve it giving their working and answers
- I will post the answer the next day OR someone gets the correct answer & working OR after 4 people have tried to work the question (whichever comes first), if I am offline, then the new question will be posted the next day.
- There are no 'rewards' or 'prizes' but its just for fun and learning some maths along the way too
Rules:
1 - Use of calculators is strictly prohibited! (you can cheat and use one, but remember if you cant be fair even alone then how can you expect to be fair to others?)
2 - ALL working MUST be shown, this is not just about getting the right answer, but its also to see if the person knows how to work the problem and most importantly others can learn how to solve problems using the examples of solved questions.
When a number is divided by a fraction, we multiply that number with the reciprocal of that fraction (e.g. reciprocal of 1/2 is 2/1)
= [ 50 ] x 2
Answer = 100
Other examples of reciprocals are:
Reciprocal of 2/3 is 3/2
Reciprocal of 5 is 1/5
Please note that the above question could only have been solved following the law of BODMAS = Brackets, Off, Division, Multiplication, Addition, Substraction)
If we try and solve it another way the answer would be wrong.
Now one final Question for the day...then I have to run to my classes lol
Q4
In a certain pet store there are 24 hampsters and 9 cats.
What is the ratio of cats to hampsters at this store?
Q4
In a certain pet store there are 24 hampsters and 9 cats.
What is the ratio of cats to hampsters at this store?
Here cometh the pain..eth
cats to hampsters: 9:24
Can be reduced to 3:8 (divide both 9 and 24 by 3)
therefore, the ratio is 3 cats to 8 hampsters - for every 3 cats there are 8 hampsters.
Someone said to the Prophet, "Pray to God against the idolaters and curse them." The Prophet replied, "I have been sent to show mercy and have not been sent to curse." (Muslim)
Yup masha'allah all those who got the answer 3/8 or 3 : 8 got it correct
Solution:
Question asks for: Ratio of Cats : Hampsters
Cats: 9
Hampsters 24
A ratio can be represented in Two ways:
Cats : Hampsters
OR
Cats / Hampsters
Thus the ratio is 9 : 24 OR 9/24
Which can be reduced to
3 : 8 OR 3/8
-------------------------------------------
Ok i know I said I was leaving but masha'Allah everyone is so quick with replies here I was caught as I was leaving but this is the last question for the day and then I go
Q5
In a class the ratio of boys to girls is 5 to 3
If there is a total of 32 students in the class then how many are boy and how many are girls?
Q6
A class of 40 students is to be divided into smaller groups.
If each group is to contain 3, 4 or 5 people, what is the largest number of groups possible leaving no one out?
Q6
A class of 40 students is to be divided into smaller groups.
If each group is to contain 3, 4 or 5 people, what is the largest number of groups possible leaving no one out?
3 goes into 40 twelve times, well actually thirteen but...
..plus one group of 4 will give you 10 groups: 12 groups of 3 = 36 plus one group of 4 = 40.
If we did 3 times by thirteen we would have 39 students and one guy left out - since groups can only be made out of 3, 4 or 5 students, we cannot use this method.
By using a group of 5, this would reduce the total amount of groups - the question asks for the largest, hence the method I explained is justified.
Someone said to the Prophet, "Pray to God against the idolaters and curse them." The Prophet replied, "I have been sent to show mercy and have not been sent to curse." (Muslim)
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