Scroll:Whole Numbers >> Four Operations >> ps (504)

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)  

Haritha bought 5850 CD - ROMs at 50 for 29 and sold all of them at 10 for 20.
How much money did Haritha make altogether


Answer:_______________




2)  

Amutha bought 5450 CD - ROMs at 50 for 20 and sold all of them at 20 for 22.
How much money did Amutha make altogether


Answer:_______________




3)  

Selvanayaki bought 7450 CD - ROMs at 50 for 16 and sold all of them at 10 for 20.
How much money did Selvanayaki make altogether


Answer:_______________




4)  

Amutha bought 8050 CD - ROMs at 50 for 14 and sold all of them at 10 for 24.
How much money did Amutha make altogether


Answer:_______________




5)  

Haritha bought 7800 CD - ROMs at 50 for 29 and sold all of them at 10 for 24.
How much money did Haritha make altogether


Answer:_______________




6)  

Pavi bought 7750 CD - ROMs at 50 for 17 and sold all of them at 10 for 24.
How much money did Pavi make altogether


Answer:_______________




7)  

Panimalar bought 6350 CD - ROMs at 50 for 30 and sold all of them at 10 for 20.
How much money did Panimalar make altogether


Answer:_______________




8)  

Indra bought 8700 CD - ROMs at 50 for 23 and sold all of them at 10 for 21.
How much money did Indra make altogether


Answer:_______________




9)  

Tulasi bought 8750 CD - ROMs at 50 for 14 and sold all of them at 10 for 24.
How much money did Tulasi make altogether


Answer:_______________




10)  

Jeevini bought 5300 CD - ROMs at 50 for 25 and sold all of them at 10 for 21.
How much money did Jeevini make altogether


Answer:_______________




 

1)  

Haritha bought 5850 CD - ROMs at 50 for 29 and sold all of them at 10 for 20.
How much money did Haritha make altogether

Answer: 8307


SOLUTION 1 :

Step 1:

5850 ÷ 50 = 117

Step 2:

Amount of money she spent on buying the CDs → 117 x 29 

                                                                                            = 3393

Step 3:

5850 ÷ 10 = 585

Step 4:

Amount of money she earned on selling the CDs : 585 x 20

                                                                                            = 11700
Step 5:

Amount of money she made altogether → 11700 - 3393

                                                                                 = 8307



2)  

Amutha bought 5450 CD - ROMs at 50 for 20 and sold all of them at 20 for 22.
How much money did Amutha make altogether

Answer: 3815


SOLUTION 1 :

Step 1:

5450 ÷ 50 = 109

Step 2:

Amount of money she spent on buying the CDs → 109 x 20 

                                                                                            = 2180

Step 3:

5450 ÷ 20 = 272.5

Step 4:

Amount of money she earned on selling the CDs : 272.5 x 22

                                                                                            = 5995
Step 5:

Amount of money she made altogether → 5995 - 2180

                                                                                 = 3815



3)  

Selvanayaki bought 7450 CD - ROMs at 50 for 16 and sold all of them at 10 for 20.
How much money did Selvanayaki make altogether

Answer: 12516


SOLUTION 1 :

Step 1:

7450 ÷ 50 = 149

Step 2:

Amount of money she spent on buying the CDs → 149 x 16 

                                                                                            = 2384

Step 3:

7450 ÷ 10 = 745

Step 4:

Amount of money she earned on selling the CDs : 745 x 20

                                                                                            = 14900
Step 5:

Amount of money she made altogether → 14900 - 2384

                                                                                 = 12516



4)  

Amutha bought 8050 CD - ROMs at 50 for 14 and sold all of them at 10 for 24.
How much money did Amutha make altogether

Answer: 17066


SOLUTION 1 :

Step 1:

8050 ÷ 50 = 161

Step 2:

Amount of money she spent on buying the CDs → 161 x 14 

                                                                                            = 2254

Step 3:

8050 ÷ 10 = 805

Step 4:

Amount of money she earned on selling the CDs : 805 x 24

                                                                                            = 19320
Step 5:

Amount of money she made altogether → 19320 - 2254

                                                                                 = 17066



5)  

Haritha bought 7800 CD - ROMs at 50 for 29 and sold all of them at 10 for 24.
How much money did Haritha make altogether

Answer: 14196


SOLUTION 1 :

Step 1:

7800 ÷ 50 = 156

Step 2:

Amount of money she spent on buying the CDs → 156 x 29 

                                                                                            = 4524

Step 3:

7800 ÷ 10 = 780

Step 4:

Amount of money she earned on selling the CDs : 780 x 24

                                                                                            = 18720
Step 5:

Amount of money she made altogether → 18720 - 4524

                                                                                 = 14196



6)  

Pavi bought 7750 CD - ROMs at 50 for 17 and sold all of them at 10 for 24.
How much money did Pavi make altogether

Answer: 15965


SOLUTION 1 :

Step 1:

7750 ÷ 50 = 155

Step 2:

Amount of money she spent on buying the CDs → 155 x 17 

                                                                                            = 2635

Step 3:

7750 ÷ 10 = 775

Step 4:

Amount of money she earned on selling the CDs : 775 x 24

                                                                                            = 18600
Step 5:

Amount of money she made altogether → 18600 - 2635

                                                                                 = 15965



7)  

Panimalar bought 6350 CD - ROMs at 50 for 30 and sold all of them at 10 for 20.
How much money did Panimalar make altogether

Answer: 8890


SOLUTION 1 :

Step 1:

6350 ÷ 50 = 127

Step 2:

Amount of money she spent on buying the CDs → 127 x 30 

                                                                                            = 3810

Step 3:

6350 ÷ 10 = 635

Step 4:

Amount of money she earned on selling the CDs : 635 x 20

                                                                                            = 12700
Step 5:

Amount of money she made altogether → 12700 - 3810

                                                                                 = 8890



8)  

Indra bought 8700 CD - ROMs at 50 for 23 and sold all of them at 10 for 21.
How much money did Indra make altogether

Answer: 14268


SOLUTION 1 :

Step 1:

8700 ÷ 50 = 174

Step 2:

Amount of money she spent on buying the CDs → 174 x 23 

                                                                                            = 4002

Step 3:

8700 ÷ 10 = 870

Step 4:

Amount of money she earned on selling the CDs : 870 x 21

                                                                                            = 18270
Step 5:

Amount of money she made altogether → 18270 - 4002

                                                                                 = 14268



9)  

Tulasi bought 8750 CD - ROMs at 50 for 14 and sold all of them at 10 for 24.
How much money did Tulasi make altogether

Answer: 18550


SOLUTION 1 :

Step 1:

8750 ÷ 50 = 175

Step 2:

Amount of money she spent on buying the CDs → 175 x 14 

                                                                                            = 2450

Step 3:

8750 ÷ 10 = 875

Step 4:

Amount of money she earned on selling the CDs : 875 x 24

                                                                                            = 21000
Step 5:

Amount of money she made altogether → 21000 - 2450

                                                                                 = 18550



10)  

Jeevini bought 5300 CD - ROMs at 50 for 25 and sold all of them at 10 for 21.
How much money did Jeevini make altogether

Answer: 8480


SOLUTION 1 :

Step 1:

5300 ÷ 50 = 106

Step 2:

Amount of money she spent on buying the CDs → 106 x 25 

                                                                                            = 2650

Step 3:

5300 ÷ 10 = 530

Step 4:

Amount of money she earned on selling the CDs : 530 x 21

                                                                                            = 11130
Step 5:

Amount of money she made altogether → 11130 - 2650

                                                                                 = 8480