Scroll:Fraction >> Model Approach >> ps (380)


Written Instructions:

For each Multiple Choice Question (MCQ), four options are given. One of them is the correct answer. Make your choice (1,2,3 or 4). Write your answers in the brackets provided..

For each Short Answer Question(SAQ) and Long Answer Question(LAQ), write your answers in the blanks provided.

Leave your answers in the simplest form or correct to two decimal places.



 

1)  

Aravindh spent 12 of his salary on electronic devices and gave 13 of his salary to his sister. In the end, he was left with $606 for himself.

a) What fraction of his salary did he have left

b) How much was his salary

$ ___


Answer:_______________




2)  

Selvan spent 13 of his salary on food and gave 25 of his salary to his sister. In the end, he was left with $812 for himself.

a) What fraction of his salary did he have left

b) How much was his salary

$ ___


Answer:_______________




3)  

Parveen spent 14 of her salary on electronic devices and gave 13 of her salary to her sister. In the end, she was left with $445 for herself.

a) What fraction of her salary did she have left

b) How much was her salary

$ ___


Answer:_______________




4)  

Kalai spent 12 of his salary on electronic devices and gave 13 of his salary to his sister. In the end, he was left with $726 for himself.

a) What fraction of his salary did he have left

b) How much was his salary

$ ___


Answer:_______________




5)  

Kumar spent 13 of his salary on food and gave 25 of his salary to his sister. In the end, he was left with $808 for himself.

a) What fraction of his salary did he have left

b) How much was his salary

$ ___


Answer:_______________




6)  

Savithri spent 14 of her salary on electronic devices and gave 13 of her salary to her sister. In the end, she was left with $845 for herself.

a) What fraction of her salary did she have left

b) How much was her salary

$ ___


Answer:_______________




7)  

Chidambaram spent 12 of his salary on electronic devices and gave 13 of his salary to his sister. In the end, he was left with $642 for himself.

a) What fraction of his salary did he have left

b) How much was his salary

$ ___


Answer:_______________




8)  

Barathan spent 13 of his salary on food and gave 25 of his salary to his sister. In the end, he was left with $644 for himself.

a) What fraction of his salary did he have left

b) How much was his salary

$ ___


Answer:_______________




9)  

Amutha spent 14 of her salary on electronic devices and gave 13 of her salary to her sister. In the end, she was left with $660 for herself.

a) What fraction of her salary did she have left

b) How much was her salary

$ ___


Answer:_______________




10)  

Murugan spent 12 of his salary on electronic devices and gave 13 of his salary to his sister. In the end, he was left with $726 for himself.

a) What fraction of his salary did he have left

b) How much was his salary

$ ___


Answer:_______________




 

1)  

Aravindh spent 12 of his salary on electronic devices and gave 13 of his salary to his sister. In the end, he was left with $606 for himself.

a) What fraction of his salary did he have left

Answer: 16

b) How much was his salary

Answer: $3636


SOLUTION 1 :
 
 
 
 
 
 
 
 
Spent
 
 
Sister
 
 
$606 left

(a)

Step 1: 1x32x3+1x23x2 = 3 6+26

                        = 56

Step 2: 6 6 -56=16

(b)

Step 3: 1 unit = $606

Step 4: 6 units= $606 x 6

                       =$3636



2)  

Selvan spent 13 of his salary on food and gave 25 of his salary to his sister. In the end, he was left with $812 for himself.

a) What fraction of his salary did he have left

Answer: 415

b) How much was his salary

Answer: $3045


SOLUTION 1 :
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Spent
 
 
Sister
 
 
$812 left

(a)

Step 1: 1x53x5+2x35x3 = 5 15+615

                             = 1115

Step 2: 1515-1115=415

(b)

Step 3: 4 units = $812

                1 unit = $812 ÷ 4

                           = $203

Step 4: 15 units= 15 x $203

                             =$3045



3)  

Parveen spent 14 of her salary on electronic devices and gave 13 of her salary to her sister. In the end, she was left with $445 for herself.

a) What fraction of her salary did she have left

Answer: 512

b) How much was her salary

Answer: $1068


SOLUTION 1 :



 

 

 

 

 

 

 

 

 

 

 

 





 

 


Spent




 

 


Sister




 

 


$445 left





(a)


Step 1: 1x34x3+1x43x4 = 3 12+412


                              = 712


 Step 2: 1212-712 = 512


(b)


Step 3: 5 units = $445


              1 unit = $445 ÷ 5


                         = $89


Step 4: 12 units= 12 x $89


                             =$1068



4)  

Kalai spent 12 of his salary on electronic devices and gave 13 of his salary to his sister. In the end, he was left with $726 for himself.

a) What fraction of his salary did he have left

Answer: 16

b) How much was his salary

Answer: $4356


SOLUTION 1 :
 
 
 
 
 
 
 
 
Spent
 
 
Sister
 
 
$726 left

(a)

Step 1: 1x32x3+1x23x2 = 3 6+26

                        = 56

Step 2: 6 6 -56=16

(b)

Step 3: 1 unit = $726

Step 4: 6 units= $726 x 6

                       =$4356



5)  

Kumar spent 13 of his salary on food and gave 25 of his salary to his sister. In the end, he was left with $808 for himself.

a) What fraction of his salary did he have left

Answer: 415

b) How much was his salary

Answer: $3030


SOLUTION 1 :
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Spent
 
 
Sister
 
 
$808 left

(a)

Step 1: 1x53x5+2x35x3 = 5 15+615

                             = 1115

Step 2: 1515-1115=415

(b)

Step 3: 4 units = $808

                1 unit = $808 ÷ 4

                           = $202

Step 4: 15 units= 15 x $202

                             =$3030



6)  

Savithri spent 14 of her salary on electronic devices and gave 13 of her salary to her sister. In the end, she was left with $845 for herself.

a) What fraction of her salary did she have left

Answer: 512

b) How much was her salary

Answer: $2028


SOLUTION 1 :



 

 

 

 

 

 

 

 

 

 

 

 





 

 


Spent




 

 


Sister




 

 


$845 left





(a)


Step 1: 1x34x3+1x43x4 = 3 12+412


                              = 712


 Step 2: 1212-712 = 512


(b)


Step 3: 5 units = $845


              1 unit = $845 ÷ 5


                         = $169


Step 4: 12 units= 12 x $169


                             =$2028



7)  

Chidambaram spent 12 of his salary on electronic devices and gave 13 of his salary to his sister. In the end, he was left with $642 for himself.

a) What fraction of his salary did he have left

Answer: 16

b) How much was his salary

Answer: $3852


SOLUTION 1 :
 
 
 
 
 
 
 
 
Spent
 
 
Sister
 
 
$642 left

(a)

Step 1: 1x32x3+1x23x2 = 3 6+26

                        = 56

Step 2: 6 6 -56=16

(b)

Step 3: 1 unit = $642

Step 4: 6 units= $642 x 6

                       =$3852



8)  

Barathan spent 13 of his salary on food and gave 25 of his salary to his sister. In the end, he was left with $644 for himself.

a) What fraction of his salary did he have left

Answer: 415

b) How much was his salary

Answer: $2415


SOLUTION 1 :
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Spent
 
 
Sister
 
 
$644 left

(a)

Step 1: 1x53x5+2x35x3 = 5 15+615

                             = 1115

Step 2: 1515-1115=415

(b)

Step 3: 4 units = $644

                1 unit = $644 ÷ 4

                           = $161

Step 4: 15 units= 15 x $161

                             =$2415



9)  

Amutha spent 14 of her salary on electronic devices and gave 13 of her salary to her sister. In the end, she was left with $660 for herself.

a) What fraction of her salary did she have left

Answer: 512

b) How much was her salary

Answer: $1584


SOLUTION 1 :



 

 

 

 

 

 

 

 

 

 

 

 





 

 


Spent




 

 


Sister




 

 


$660 left





(a)


Step 1: 1x34x3+1x43x4 = 3 12+412


                              = 712


 Step 2: 1212-712 = 512


(b)


Step 3: 5 units = $660


              1 unit = $660 ÷ 5


                         = $132


Step 4: 12 units= 12 x $132


                             =$1584



10)  

Murugan spent 12 of his salary on electronic devices and gave 13 of his salary to his sister. In the end, he was left with $726 for himself.

a) What fraction of his salary did he have left

Answer: 16

b) How much was his salary

Answer: $4356


SOLUTION 1 :
 
 
 
 
 
 
 
 
Spent
 
 
Sister
 
 
$726 left

(a)

Step 1: 1x32x3+1x23x2 = 3 6+26

                        = 56

Step 2: 6 6 -56=16

(b)

Step 3: 1 unit = $726

Step 4: 6 units= $726 x 6

                       =$4356