Scroll:Fraction >> 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 13 of his salary on food and gave 25 of his salary to his sister. In the end, he was left with $792 for himself.

a) What fraction of his salary did he have left

b) How much was his salary

$ ___


Answer:_______________




2)  

Nandini 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:_______________




3)  

Raj spent 12 of his salary on electronic devices and gave 13 of his salary to his sister. In the end, he was left with $474 for himself.

a) What fraction of his salary did he have left

b) How much was his salary

$ ___


Answer:_______________




4)  

Prem spent 13 of his salary on food and gave 25 of his salary to his sister. In the end, he was left with $596 for himself.

a) What fraction of his salary did he have left

b) How much was his salary

$ ___


Answer:_______________




5)  

Tamilselvi spent 14 of her salary on electronic devices and gave 13 of her salary to her sister. In the end, she was left with $465 for herself.

a) What fraction of her salary did she have left

b) How much was her salary

$ ___


Answer:_______________




6)  

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 $654 for himself.

a) What fraction of his salary did he have left

b) How much was his salary

$ ___


Answer:_______________




7)  

Moorthi spent 13 of his salary on food and gave 25 of his salary to his sister. In the end, he was left with $832 for himself.

a) What fraction of his salary did he have left

b) How much was his salary

$ ___


Answer:_______________




8)  

Nandini spent 14 of her salary on electronic devices and gave 13 of her salary to her sister. In the end, she was left with $580 for herself.

a) What fraction of her salary did she have left

b) How much was her salary

$ ___


Answer:_______________




9)  

Prem 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:_______________




10)  

Murugan 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)  

Selvan spent 13 of his salary on food and gave 25 of his salary to his sister. In the end, he was left with $792 for himself.

a) What fraction of his salary did he have left

Answer: 415

b) How much was his salary

Answer: $2970


SOLUTION 1 :
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Spent
 
 
Sister
 
 
$792 left

(a)

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

                             = 1115

Step 2: 1515-1115=415

(b)

Step 3: 4 units = $792

                1 unit = $792 ÷ 4

                           = $198

Step 4: 15 units= 15 x $198

                             =$2970



2)  

Nandini 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



3)  

Raj spent 12 of his salary on electronic devices and gave 13 of his salary to his sister. In the end, he was left with $474 for himself.

a) What fraction of his salary did he have left

Answer: 16

b) How much was his salary

Answer: $2844


SOLUTION 1 :
 
 
 
 
 
 
 
 
Spent
 
 
Sister
 
 
$474 left

(a)

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

                        = 56

Step 2: 6 6 -56=16

(b)

Step 3: 1 unit = $474

Step 4: 6 units= $474 x 6

                       =$2844



4)  

Prem spent 13 of his salary on food and gave 25 of his salary to his sister. In the end, he was left with $596 for himself.

a) What fraction of his salary did he have left

Answer: 415

b) How much was his salary

Answer: $2235


SOLUTION 1 :
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Spent
 
 
Sister
 
 
$596 left

(a)

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

                             = 1115

Step 2: 1515-1115=415

(b)

Step 3: 4 units = $596

                1 unit = $596 ÷ 4

                           = $149

Step 4: 15 units= 15 x $149

                             =$2235



5)  

Tamilselvi spent 14 of her salary on electronic devices and gave 13 of her salary to her sister. In the end, she was left with $465 for herself.

a) What fraction of her salary did she have left

Answer: 512

b) How much was her salary

Answer: $1116


SOLUTION 1 :



 

 

 

 

 

 

 

 

 

 

 

 





 

 


Spent




 

 


Sister




 

 


$465 left





(a)


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


                              = 712


 Step 2: 1212-712 = 512


(b)


Step 3: 5 units = $465


              1 unit = $465 ÷ 5


                         = $93


Step 4: 12 units= 12 x $93


                             =$1116



6)  

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 $654 for himself.

a) What fraction of his salary did he have left

Answer: 16

b) How much was his salary

Answer: $3924


SOLUTION 1 :
 
 
 
 
 
 
 
 
Spent
 
 
Sister
 
 
$654 left

(a)

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

                        = 56

Step 2: 6 6 -56=16

(b)

Step 3: 1 unit = $654

Step 4: 6 units= $654 x 6

                       =$3924



7)  

Moorthi spent 13 of his salary on food and gave 25 of his salary to his sister. In the end, he was left with $832 for himself.

a) What fraction of his salary did he have left

Answer: 415

b) How much was his salary

Answer: $3120


SOLUTION 1 :
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Spent
 
 
Sister
 
 
$832 left

(a)

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

                             = 1115

Step 2: 1515-1115=415

(b)

Step 3: 4 units = $832

                1 unit = $832 ÷ 4

                           = $208

Step 4: 15 units= 15 x $208

                             =$3120



8)  

Nandini spent 14 of her salary on electronic devices and gave 13 of her salary to her sister. In the end, she was left with $580 for herself.

a) What fraction of her salary did she have left

Answer: 512

b) How much was her salary

Answer: $1392


SOLUTION 1 :



 

 

 

 

 

 

 

 

 

 

 

 





 

 


Spent




 

 


Sister




 

 


$580 left





(a)


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


                              = 712


 Step 2: 1212-712 = 512


(b)


Step 3: 5 units = $580


              1 unit = $580 ÷ 5


                         = $116


Step 4: 12 units= 12 x $116


                             =$1392



9)  

Prem 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



10)  

Murugan 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