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)  

Pugal spent 12 of his salary on electronic devices and gave 13 of his salary to his sister. In the end, he was left with $432 for himself.

a) What fraction of his salary did he have left

b) How much was his salary

$ ___


Answer:_______________




2)  

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 $895 for herself.

a) What fraction of her salary did she have left

b) How much was her salary

$ ___


Answer:_______________




3)  

Pugal spent 13 of his salary on food and gave 25 of his salary to his sister. In the end, he was left with $612 for himself.

a) What fraction of his salary did he have left

b) How much was his salary

$ ___


Answer:_______________




4)  

Kumar spent 12 of his salary on electronic devices and gave 13 of his salary to his sister. In the end, he was left with $858 for himself.

a) What fraction of his salary did he have left

b) How much was his salary

$ ___


Answer:_______________




5)  

Pavi spent 14 of her salary on electronic devices and gave 13 of her salary to her sister. In the end, she was left with $475 for herself.

a) What fraction of her salary did she have left

b) How much was her salary

$ ___


Answer:_______________




6)  

Kalai spent 13 of his salary on food and gave 25 of his salary to his sister. In the end, he was left with $732 for himself.

a) What fraction of his salary did he have left

b) How much was his salary

$ ___


Answer:_______________




7)  

Anand spent 12 of his salary on electronic devices and gave 13 of his salary to his sister. In the end, he was left with $402 for himself.

a) What fraction of his salary did he have left

b) How much was his salary

$ ___


Answer:_______________




8)  

Poovazhagi spent 14 of her salary on electronic devices and gave 13 of her salary to her sister. In the end, she was left with $795 for herself.

a) What fraction of her salary did she have left

b) How much was her salary

$ ___


Answer:_______________




9)  

Selvan spent 13 of his salary on food and gave 25 of his salary to his sister. In the end, he was left with $724 for himself.

a) What fraction of his salary did he have left

b) How much was his salary

$ ___


Answer:_______________




10)  

Narayanan spent 12 of his salary on electronic devices and gave 13 of his salary to his sister. In the end, he was left with $816 for himself.

a) What fraction of his salary did he have left

b) How much was his salary

$ ___


Answer:_______________




 

1)  

Pugal spent 12 of his salary on electronic devices and gave 13 of his salary to his sister. In the end, he was left with $432 for himself.

a) What fraction of his salary did he have left

Answer: 16

b) How much was his salary

Answer: $2592


SOLUTION 1 :
 
 
 
 
 
 
 
 
Spent
 
 
Sister
 
 
$432 left

(a)

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

                        = 56

Step 2: 6 6 -56=16

(b)

Step 3: 1 unit = $432

Step 4: 6 units= $432 x 6

                       =$2592



2)  

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 $895 for herself.

a) What fraction of her salary did she have left

Answer: 512

b) How much was her salary

Answer: $2148


SOLUTION 1 :



 

 

 

 

 

 

 

 

 

 

 

 





 

 


Spent




 

 


Sister




 

 


$895 left





(a)


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


                              = 712


 Step 2: 1212-712 = 512


(b)


Step 3: 5 units = $895


              1 unit = $895 ÷ 5


                         = $179


Step 4: 12 units= 12 x $179


                             =$2148



3)  

Pugal spent 13 of his salary on food and gave 25 of his salary to his sister. In the end, he was left with $612 for himself.

a) What fraction of his salary did he have left

Answer: 415

b) How much was his salary

Answer: $2295


SOLUTION 1 :
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Spent
 
 
Sister
 
 
$612 left

(a)

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

                             = 1115

Step 2: 1515-1115=415

(b)

Step 3: 4 units = $612

                1 unit = $612 ÷ 4

                           = $153

Step 4: 15 units= 15 x $153

                             =$2295



4)  

Kumar spent 12 of his salary on electronic devices and gave 13 of his salary to his sister. In the end, he was left with $858 for himself.

a) What fraction of his salary did he have left

Answer: 16

b) How much was his salary

Answer: $5148


SOLUTION 1 :
 
 
 
 
 
 
 
 
Spent
 
 
Sister
 
 
$858 left

(a)

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

                        = 56

Step 2: 6 6 -56=16

(b)

Step 3: 1 unit = $858

Step 4: 6 units= $858 x 6

                       =$5148



5)  

Pavi spent 14 of her salary on electronic devices and gave 13 of her salary to her sister. In the end, she was left with $475 for herself.

a) What fraction of her salary did she have left

Answer: 512

b) How much was her salary

Answer: $1140


SOLUTION 1 :



 

 

 

 

 

 

 

 

 

 

 

 





 

 


Spent




 

 


Sister




 

 


$475 left





(a)


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


                              = 712


 Step 2: 1212-712 = 512


(b)


Step 3: 5 units = $475


              1 unit = $475 ÷ 5


                         = $95


Step 4: 12 units= 12 x $95


                             =$1140



6)  

Kalai spent 13 of his salary on food and gave 25 of his salary to his sister. In the end, he was left with $732 for himself.

a) What fraction of his salary did he have left

Answer: 415

b) How much was his salary

Answer: $2745


SOLUTION 1 :
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Spent
 
 
Sister
 
 
$732 left

(a)

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

                             = 1115

Step 2: 1515-1115=415

(b)

Step 3: 4 units = $732

                1 unit = $732 ÷ 4

                           = $183

Step 4: 15 units= 15 x $183

                             =$2745



7)  

Anand spent 12 of his salary on electronic devices and gave 13 of his salary to his sister. In the end, he was left with $402 for himself.

a) What fraction of his salary did he have left

Answer: 16

b) How much was his salary

Answer: $2412


SOLUTION 1 :
 
 
 
 
 
 
 
 
Spent
 
 
Sister
 
 
$402 left

(a)

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

                        = 56

Step 2: 6 6 -56=16

(b)

Step 3: 1 unit = $402

Step 4: 6 units= $402 x 6

                       =$2412



8)  

Poovazhagi spent 14 of her salary on electronic devices and gave 13 of her salary to her sister. In the end, she was left with $795 for herself.

a) What fraction of her salary did she have left

Answer: 512

b) How much was her salary

Answer: $1908


SOLUTION 1 :



 

 

 

 

 

 

 

 

 

 

 

 





 

 


Spent




 

 


Sister




 

 


$795 left





(a)


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


                              = 712


 Step 2: 1212-712 = 512


(b)


Step 3: 5 units = $795


              1 unit = $795 ÷ 5


                         = $159


Step 4: 12 units= 12 x $159


                             =$1908



9)  

Selvan spent 13 of his salary on food and gave 25 of his salary to his sister. In the end, he was left with $724 for himself.

a) What fraction of his salary did he have left

Answer: 415

b) How much was his salary

Answer: $2715


SOLUTION 1 :
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Spent
 
 
Sister
 
 
$724 left

(a)

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

                             = 1115

Step 2: 1515-1115=415

(b)

Step 3: 4 units = $724

                1 unit = $724 ÷ 4

                           = $181

Step 4: 15 units= 15 x $181

                             =$2715



10)  

Narayanan spent 12 of his salary on electronic devices and gave 13 of his salary to his sister. In the end, he was left with $816 for himself.

a) What fraction of his salary did he have left

Answer: 16

b) How much was his salary

Answer: $4896


SOLUTION 1 :
 
 
 
 
 
 
 
 
Spent
 
 
Sister
 
 
$816 left

(a)

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

                        = 56

Step 2: 6 6 -56=16

(b)

Step 3: 1 unit = $816

Step 4: 6 units= $816 x 6

                       =$4896