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�MATHEMATICS�

CHAPTER:-THE JUNK SELLER

TOPIC:-PRICE LIST

COMPETENCY:-ABILITY TO COMPUTE

SUB COMPENTENCY:-PROBLEM SOLVING ABILITY

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JUNK

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JINU’S RATE LIST

SR NO.

KIND OF JUNK

PRICE OF 1KG

1

WASTE PAPER

RS.5

2

NEWS PAPER

RS.8

3

IRON

RS.15

4

BRASS

RS.190

5

PLASTIC

RS.18

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DINU’S RATE LIST

SR NO.

KIND OF JUNK

PRICE OF 1KG

1

WASTE PAPER

RS.4.50

2

NEWS PAPER

RS.6

3

IRON

RS.14

4

BRASS

RS.180

5

PLASTIC

RS.15

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HOW MUCH WILL DINU PAY FOR 63KG PLASTIC?

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WE CAN WRITE …...

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  • 63=60+3
  • 12=10+2

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HOW TO MULTIPLY:- 63X12

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60

3

10

​

​

2

​

​

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HOW TO MULTIPLY:- 63X12

​

60

3

10

60X10

600

​

2

​

​

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HOW TO MULTIPLY:- 63X12

​

60

3

10

60X10

600

3X10

30

2

​

​

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HOW TO MULTIPLY:- 63X12

​

60

3

10

60X10

600

3X10

30

2

60X2

120

​

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HOW TO MULTIPLY:- 63X12

​

60

3

10

60X10

600

3X10

30

2

60X2

120

3X2

6

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ADD:-

600

120

30

+ 6

???

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ADD:-

600

120

30

+ 6

756

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HOW MUCH WILL JINU PAY FOR 63 KG PLASTIC?

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COST OF 1KG

PLASTIC= RS.18

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COST OF 63 KG PLASTIC=63X18

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HOW TO MULTIPLY:-63X18

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60

3

10

60X10

600

3X10

30

8

60X8

480

3X8

24

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ADD:-

600

480

30

+ 24

????

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ADD:-

600

480

30

+ 24

1134

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QUESTIONS:-

​

​

  • TO WHOME SHOULD KIRAN SELL PLASTIC?

ANS:-_______________________________

  • WHY?

ANS:-__________________________________

  • WHO WILL PAY LESS FOR PLASTIC?

ANS:-______________________________________

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QUESTIONS:-

​

​

  • TO WHOME SHOULD KIRAN SELL PLASTIC?

ANS:-JINU.

  • WHY?

ANS:-BECAUSE, JINU IS PAYING MORE FOR PLASTIC.

  • WHO WILL PAY LESS FOR PLASTIC?

ANS:-DINU.

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QUESTIONS:-

FIND

JINU’S RATE LIST

DINU’ RATE LIST

COST OF 5 KG PLASTIC

COST OF 1 KG PLASTIC=

COST OF 5 KG PLASTIC=

COST OF IKG PLASTIC=

COST OF 5 KG PLASTIC=

COST OF 23KG BRASS

COST OF 1 KG BRASS=

COST OF 23 KG BRASS=

COST OF 1 KG BRASS=

COST OF 23 KG BRASS=

​

COST OF 30KG IRON

COST OF 1 KG IRON=

COST OF 30 KG IRON=

COST OF 1 KG IRON=

COST OF 30 KG IRON=

​

COST OF 34KG WASTEPAPER

COST OF 1 KG WASTEPAPER=

COST OF 34 KG WASTEPAPER=

COST OF 1 KG WASTE PAPER=

COST OF 34 KG WASTEPAPER=

​

COST OF 45KG NEWSPAPER

COST OF 1 KG NEWSPAPER=

COST OF 45 KG NEWSPAPER=

COST OF 1 KG NEWSPAPER=

COST OF 45 KG NEWSPAPER=

​

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QUESTIONS:-

FIND

JINU’S RATE LIST

DINU’ RATE LIST

COST OF 5 KG PLASTIC

COST OF 1 KG PLASTIC= 18 RS.

COST OF 5 KG PLASTIC= 18X5=90RS.

​

COST OF IKG PLASTIC=15RS.

COST OF 5 KG PLASTIC= 15X5=75RS.

COST OF 23KG BRASS

COST OF 1 KG BRASS=190 RS

COST OF 23 KG BRASS=

190X23=4370RS.

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COST OF 1 KG BRASS=180 RS.

COST OF 23 KG BRASS= 180X23=4140RS.

COST OF 30KG IRON

COST OF 1 KG IRON=15 RS.

COST OF 30 KG IRON= 15X30=450RS.

​

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COST OF 1 KG IRON=14 RS.

COST OF 30 KG IRON= 14X30=420RS.

COST OF 34KG WASTEPAPER

COST OF 1 KG WASTEPAPER=5 RS.

COST OF 34 KG WASTEPAPER= 5X34=170RS.

​

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COST OF 1 KG WASTE PAPER=4.50 RS.

COST OF 34 KG WASTEPAPER= 4.5X34=153RS.

COST OF 45KG NEWSPAPER

COST OF 1 KG NEWSPAPER=8 RS.

COST OF 45 KG NEWSPAPER= 8X45=360RS.

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COST OF 1 KG NEWSPAPER= 6 RS.

COST OF 45 KG NEWSPAPER= 6X45=270RS.

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FIND:-

  • 65X45=____________
  • 78X34=____________
  • 54X29=____________
  • 45X7 =____________
  • 34X23=____________
  • 15X92=____________
  • 24X41=____________
  • 12X19=____________

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FIND:-

  • 65X45=____________
  • 78X34=____________
  • 54X29=____________
  • 45X7 =____________
  • 34X23=____________
  • 15X92=____________
  • 24X41=____________
  • 12X19=____________

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