Three boys spent the same amount of money on printers.
Henry spent 2/5 of his money, Jonas spent 3/4 of his and Fred spent 2/3 of his.
They had a total of $1440 at first. How much of money did each boy spend?
Since Each boy spent the same amount of money, you make the numerator the same.
Henry Jonas Fred
2/5 x 3 3/4 x 2 2/3 x 3
6/15 6/8 6/9
The denominator now represents the total Units they each had.
15 Units 8 Units 9 Units
TOTAl Amount: $1440
Total Units : 15+8+9= 32 Units
32 Units -> $1440
1 Unit -> $45
Since Each of them Spent 6 units,
6 Units-> $45 x 6 = $270.
Each boy spent $270.
KEY WORDS/THINGS TO LOOK OUT FOR?
1) It is a Fraction question
2) It has words like Spent/used the Same/Equal .
I have made another similar sets of question below for you to MASTER THE TECHNIQUE. Let us know what are your answers on our Facebook Page “‘ https://www.facebook.com/SingaporeLearner/”. All the best for your revision.
Mary and Tom used the same number of beads to make jewelries.
Mary used 2/5 of hers and Tom used 3/4 of his. They both had a total of 2300 beads.
How many beads did each of them use?
Question 2 :
There are 540 people in Block A and Block B. 2/5 of the people in School A and 1/4 of the people in School B are Children. Given that there is an equal number of Adult in both Block A and Block B, how many Children are there in School A?