Scroll:Fractions >> Four Operations of Fractions >> 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)  

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 $438 for himself.

a) What fraction of his salary did he have left

b) How much was his salary

$ ___


Answer:_______________




2)  

Sriram 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:_______________




3)  

Indra spent 14 of her salary on electronic devices and gave 13 of her salary to her sister. In the end, she was left with $800 for herself.

a) What fraction of her salary did she have left

b) How much was her salary

$ ___


Answer:_______________




4)  

Balaji spent 12 of his salary on electronic devices and gave 13 of his salary to his sister. In the end, he was left with $738 for himself.

a) What fraction of his salary did he have left

b) How much was his salary

$ ___


Answer:_______________




5)  

Selvan spent 13 of his salary on food and gave 25 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:_______________




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 $805 for herself.

a) What fraction of her salary did she have left

b) How much was her salary

$ ___


Answer:_______________




7)  

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 $696 for himself.

a) What fraction of his salary did he have left

b) How much was his salary

$ ___


Answer:_______________




8)  

Chidambaram spent 13 of his salary on food and gave 25 of his salary to his sister. In the end, he was left with $564 for himself.

a) What fraction of his salary did he have left

b) How much was his salary

$ ___


Answer:_______________




9)  

Indra 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)  

Moorthi spent 12 of his salary on electronic devices and gave 13 of his salary to his sister. In the end, he was left with $798 for himself.

a) What fraction of his salary did he have left

b) How much was his salary

$ ___


Answer:_______________




 

1)  

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 $438 for himself.

a) What fraction of his salary did he have left

Answer: 16

b) How much was his salary

Answer: $2628


SOLUTION 1 :
 
 
 
 
 
 
 
 
Spent
 
 
Sister
 
 
$438 left

(a)

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

                        = 56

Step 2: 6 6 -56=16

(b)

Step 3: 1 unit = $438

Step 4: 6 units= $438 x 6

                       =$2628



2)  

Sriram 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



3)  

Indra spent 14 of her salary on electronic devices and gave 13 of her salary to her sister. In the end, she was left with $800 for herself.

a) What fraction of her salary did she have left

Answer: 512

b) How much was her salary

Answer: $1920


SOLUTION 1 :



 

 

 

 

 

 

 

 

 

 

 

 





 

 


Spent




 

 


Sister




 

 


$800 left





(a)


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


                              = 712


 Step 2: 1212-712 = 512


(b)


Step 3: 5 units = $800


              1 unit = $800 ÷ 5


                         = $160


Step 4: 12 units= 12 x $160


                             =$1920



4)  

Balaji spent 12 of his salary on electronic devices and gave 13 of his salary to his sister. In the end, he was left with $738 for himself.

a) What fraction of his salary did he have left

Answer: 16

b) How much was his salary

Answer: $4428


SOLUTION 1 :
 
 
 
 
 
 
 
 
Spent
 
 
Sister
 
 
$738 left

(a)

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

                        = 56

Step 2: 6 6 -56=16

(b)

Step 3: 1 unit = $738

Step 4: 6 units= $738 x 6

                       =$4428



5)  

Selvan spent 13 of his salary on food and gave 25 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: 415

b) How much was his salary

Answer: $3060


SOLUTION 1 :
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Spent
 
 
Sister
 
 
$816 left

(a)

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

                             = 1115

Step 2: 1515-1115=415

(b)

Step 3: 4 units = $816

                1 unit = $816 ÷ 4

                           = $204

Step 4: 15 units= 15 x $204

                             =$3060



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 $805 for herself.

a) What fraction of her salary did she have left

Answer: 512

b) How much was her salary

Answer: $1932


SOLUTION 1 :



 

 

 

 

 

 

 

 

 

 

 

 





 

 


Spent




 

 


Sister




 

 


$805 left





(a)


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


                              = 712


 Step 2: 1212-712 = 512


(b)


Step 3: 5 units = $805


              1 unit = $805 ÷ 5


                         = $161


Step 4: 12 units= 12 x $161


                             =$1932



7)  

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 $696 for himself.

a) What fraction of his salary did he have left

Answer: 16

b) How much was his salary

Answer: $4176


SOLUTION 1 :
 
 
 
 
 
 
 
 
Spent
 
 
Sister
 
 
$696 left

(a)

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

                        = 56

Step 2: 6 6 -56=16

(b)

Step 3: 1 unit = $696

Step 4: 6 units= $696 x 6

                       =$4176



8)  

Chidambaram spent 13 of his salary on food and gave 25 of his salary to his sister. In the end, he was left with $564 for himself.

a) What fraction of his salary did he have left

Answer: 415

b) How much was his salary

Answer: $2115


SOLUTION 1 :
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Spent
 
 
Sister
 
 
$564 left

(a)

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

                             = 1115

Step 2: 1515-1115=415

(b)

Step 3: 4 units = $564

                1 unit = $564 ÷ 4

                           = $141

Step 4: 15 units= 15 x $141

                             =$2115



9)  

Indra 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)  

Moorthi spent 12 of his salary on electronic devices and gave 13 of his salary to his sister. In the end, he was left with $798 for himself.

a) What fraction of his salary did he have left

Answer: 16

b) How much was his salary

Answer: $4788


SOLUTION 1 :
 
 
 
 
 
 
 
 
Spent
 
 
Sister
 
 
$798 left

(a)

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

                        = 56

Step 2: 6 6 -56=16

(b)

Step 3: 1 unit = $798

Step 4: 6 units= $798 x 6

                       =$4788