Scroll:Fractions >> 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)  

Moorthi spent 13 of his salary on food and gave 25 of his salary to his sister. In the end, he was left with $608 for himself.

a) What fraction of his salary did he have left

b) How much was his salary

$ ___


Answer:_______________




2)  

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 $810 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 $725 for herself.

a) What fraction of her salary did she have left

b) How much was her salary

$ ___


Answer:_______________




4)  

Murugan spent 13 of his salary on food and gave 25 of his salary to his sister. In the end, he was left with $872 for himself.

a) What fraction of his salary did he have left

b) How much was his salary

$ ___


Answer:_______________




5)  

Selvan spent 12 of his salary on electronic devices and gave 13 of his salary to his sister. In the end, he was left with $660 for himself.

a) What fraction of his salary did he have left

b) How much was his salary

$ ___


Answer:_______________




6)  

Poongodi spent 14 of her salary on electronic devices and gave 13 of her salary to her sister. In the end, she was left with $625 for herself.

a) What fraction of her salary did she have left

b) How much was her salary

$ ___


Answer:_______________




7)  

Barathan spent 13 of his salary on food and gave 25 of his salary to his sister. In the end, he was left with $516 for himself.

a) What fraction of his salary did he have left

b) How much was his salary

$ ___


Answer:_______________




8)  

Barathan spent 12 of his salary on electronic devices and gave 13 of his salary to his sister. In the end, he was left with $492 for himself.

a) What fraction of his salary did he have left

b) How much was his salary

$ ___


Answer:_______________




9)  

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 $810 for herself.

a) What fraction of her salary did she have left

b) How much was her salary

$ ___


Answer:_______________




10)  

Balaji spent 13 of his salary on food and gave 25 of his salary to his sister. In the end, he was left with $756 for himself.

a) What fraction of his salary did he have left

b) How much was his salary

$ ___


Answer:_______________




 

1)  

Moorthi spent 13 of his salary on food and gave 25 of his salary to his sister. In the end, he was left with $608 for himself.

a) What fraction of his salary did he have left

Answer: 415

b) How much was his salary

Answer: $2280


SOLUTION 1 :
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Spent
 
 
Sister
 
 
$608 left

(a)

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

                             = 1115

Step 2: 1515-1115=415

(b)

Step 3: 4 units = $608

                1 unit = $608 ÷ 4

                           = $152

Step 4: 15 units= 15 x $152

                             =$2280



2)  

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 $810 for himself.

a) What fraction of his salary did he have left

Answer: 16

b) How much was his salary

Answer: $4860


SOLUTION 1 :
 
 
 
 
 
 
 
 
Spent
 
 
Sister
 
 
$810 left

(a)

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

                        = 56

Step 2: 6 6 -56=16

(b)

Step 3: 1 unit = $810

Step 4: 6 units= $810 x 6

                       =$4860



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 $725 for herself.

a) What fraction of her salary did she have left

Answer: 512

b) How much was her salary

Answer: $1740


SOLUTION 1 :



 

 

 

 

 

 

 

 

 

 

 

 





 

 


Spent




 

 


Sister




 

 


$725 left





(a)


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


                              = 712


 Step 2: 1212-712 = 512


(b)


Step 3: 5 units = $725


              1 unit = $725 ÷ 5


                         = $145


Step 4: 12 units= 12 x $145


                             =$1740



4)  

Murugan spent 13 of his salary on food and gave 25 of his salary to his sister. In the end, he was left with $872 for himself.

a) What fraction of his salary did he have left

Answer: 415

b) How much was his salary

Answer: $3270


SOLUTION 1 :
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Spent
 
 
Sister
 
 
$872 left

(a)

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

                             = 1115

Step 2: 1515-1115=415

(b)

Step 3: 4 units = $872

                1 unit = $872 ÷ 4

                           = $218

Step 4: 15 units= 15 x $218

                             =$3270



5)  

Selvan spent 12 of his salary on electronic devices and gave 13 of his salary to his sister. In the end, he was left with $660 for himself.

a) What fraction of his salary did he have left

Answer: 16

b) How much was his salary

Answer: $3960


SOLUTION 1 :
 
 
 
 
 
 
 
 
Spent
 
 
Sister
 
 
$660 left

(a)

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

                        = 56

Step 2: 6 6 -56=16

(b)

Step 3: 1 unit = $660

Step 4: 6 units= $660 x 6

                       =$3960



6)  

Poongodi spent 14 of her salary on electronic devices and gave 13 of her salary to her sister. In the end, she was left with $625 for herself.

a) What fraction of her salary did she have left

Answer: 512

b) How much was her salary

Answer: $1500


SOLUTION 1 :



 

 

 

 

 

 

 

 

 

 

 

 





 

 


Spent




 

 


Sister




 

 


$625 left





(a)


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


                              = 712


 Step 2: 1212-712 = 512


(b)


Step 3: 5 units = $625


              1 unit = $625 ÷ 5


                         = $125


Step 4: 12 units= 12 x $125


                             =$1500



7)  

Barathan spent 13 of his salary on food and gave 25 of his salary to his sister. In the end, he was left with $516 for himself.

a) What fraction of his salary did he have left

Answer: 415

b) How much was his salary

Answer: $1935


SOLUTION 1 :
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Spent
 
 
Sister
 
 
$516 left

(a)

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

                             = 1115

Step 2: 1515-1115=415

(b)

Step 3: 4 units = $516

                1 unit = $516 ÷ 4

                           = $129

Step 4: 15 units= 15 x $129

                             =$1935



8)  

Barathan spent 12 of his salary on electronic devices and gave 13 of his salary to his sister. In the end, he was left with $492 for himself.

a) What fraction of his salary did he have left

Answer: 16

b) How much was his salary

Answer: $2952


SOLUTION 1 :
 
 
 
 
 
 
 
 
Spent
 
 
Sister
 
 
$492 left

(a)

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

                        = 56

Step 2: 6 6 -56=16

(b)

Step 3: 1 unit = $492

Step 4: 6 units= $492 x 6

                       =$2952



9)  

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 $810 for herself.

a) What fraction of her salary did she have left

Answer: 512

b) How much was her salary

Answer: $1944


SOLUTION 1 :



 

 

 

 

 

 

 

 

 

 

 

 





 

 


Spent




 

 


Sister




 

 


$810 left





(a)


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


                              = 712


 Step 2: 1212-712 = 512


(b)


Step 3: 5 units = $810


              1 unit = $810 ÷ 5


                         = $162


Step 4: 12 units= 12 x $162


                             =$1944



10)  

Balaji spent 13 of his salary on food and gave 25 of his salary to his sister. In the end, he was left with $756 for himself.

a) What fraction of his salary did he have left

Answer: 415

b) How much was his salary

Answer: $2835


SOLUTION 1 :
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Spent
 
 
Sister
 
 
$756 left

(a)

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

                             = 1115

Step 2: 1515-1115=415

(b)

Step 3: 4 units = $756

                1 unit = $756 ÷ 4

                           = $189

Step 4: 15 units= 15 x $189

                             =$2835