S K Gupta & Anubhuti Gangal solutions for ICSE NumbersWiz 6 Negative Numbers and Integers S K Gupta and Anubhuti Gangal Solutions for Exercise 5: Brain teaser

MEDIUM

6th ICSE

IMPORTANT

ICSE NumbersWiz 6>Chapter 3 - Negative Numbers and Integers>Brain teaser>Q (i)

Deepak and Pushkar are elevator operators. Use their work records for Monday morning, and the diagram given below, to answer the questions. In the work records, $+ 2$ means up two floors, $- 3$ means down three floors, and so forth.

Work Record		Work Record
Operator: Deepak		Operator: Pushkar
Start: Ground Floor		Start: Ground Floor
Time	Floors Travelled	Time	Floors Travelled
$8 - 9 AM$	$+ 2, - 1, - 3, + 4$	$8 - 9 AM$	$+ 1, - 2, - 2, + 1, - 2$
$9 - 10 AM$	$- 1, - 2, - 2, + 3, + 1$	$9 - 10 AM$	$+ 2, + 3, - 1, + 1, + 4$
$10 - 11 AM$	$- 2, + 1, - 1, + 1, + 2, - 3$	$10 - 11 AM$	$+ 2, - 1, - 2, - 1, - 3$

7

th floor

6

th floor

5

th floor

4

th floor

3

rd floor

2

nd floor

1

st floor

Ground floor

1

st basement

2

nd basement

3

rd basement

4

th basement

On which floor was Deepak at $11 A M$ ?

MEDIUM

6th ICSE

IMPORTANT

ICSE NumbersWiz 6>Chapter 3 - Negative Numbers and Integers>Brain teaser>Q (ii)

Deepak and Pushkar are elevator operators. Use their work records for Monday morning, and the diagram given below, to answer the questions. In the work records, $+ 2$ means up two floors, $- 3$ means down three floors, and so forth.

Work Record		Work Record
Operator: Deepak		Operator: Pushkar
Start: Ground Floor		Start: Ground Floor
Time	Floors Travelled	Time	Floors Travelled
$8 - 9 AM$	$+ 2, - 1, - 3, + 4$	$8 - 9 AM$	$+ 1, - 2, - 2, + 1, - 2$
$9 - 10 AM$	$- 1, - 2, - 2, + 3, + 1$	$9 - 10 AM$	$+ 2, + 3, - 1, + 1, + 4$
$10 - 11 AM$	$- 2, + 1, - 1, + 1, + 2, - 3$	$10 - 11 AM$	$+ 2, - 1, - 2, - 1, - 3$

7

th floor

6

th floor

5

th floor

4

th floor

3

rd floor

2

nd floor

1

st floor

Ground floor

1

st basement

2

nd basement

3

rd basement

4

th basement

On which floor was Pushkar at $9 AM$ ?

MEDIUM

6th ICSE

IMPORTANT

ICSE NumbersWiz 6>Chapter 3 - Negative Numbers and Integers>Brain teaser>Q (ii)

Deepak and Pushkar are elevator operators. Use their work records for Monday morning, and the diagram given below, to answer the questions. In the work records, $+ 2$ means up two floors, $- 3$ means down three floors, and so forth.

Work Record		Work Record
Operator: Deepak		Operator: Pushkar
Start: Ground Floor		Start: Ground Floor
Time	Floors Travelled	Time	Floors Travelled
$8 - 9 AM$	$+ 2, - 1, - 3, + 4$	$8 - 9 AM$	$+ 1, - 2, - 2, + 1, - 2$
$9 - 10 AM$	$- 1, - 2, - 2, + 3, + 1$	$9 - 10 AM$	$+ 2, + 3, - 1, + 1, + 4$
$10 - 11 AM$	$- 2, + 1, - 1, + 1, + 2, - 3$	$10 - 11 AM$	$+ 2, - 1, - 2, - 1, - 3$

7

th floor

6

th floor

5

th floor

4

th floor

3

rd floor

2

nd floor

1

st floor

Ground floor

1

st basement

2

nd basement

3

rd basement

4

th basement

On which floor was Pushkar at $10 AM$ ?

MEDIUM

6th ICSE

IMPORTANT

ICSE NumbersWiz 6>Chapter 3 - Negative Numbers and Integers>Brain teaser>Q (ii)

Deepak and Pushkar are elevator operators. Use their work records for Monday morning, and the diagram given below, to answer the questions. In the work records, $+ 2$ means up two floors, $- 3$ means down three floors, and so forth.

Work Record		Work Record
Operator: Deepak		Operator: Pushkar
Start: Ground Floor		Start: Ground Floor
Time	Floors Travelled	Time	Floors Travelled
$8 - 9 AM$	$+ 2, - 1, - 3, + 4$	$8 - 9 AM$	$+ 1, - 2, - 2, + 1, - 2$
$9 - 10 AM$	$- 1, - 2, - 2, + 3, + 1$	$9 - 10 AM$	$+ 2, + 3, - 1, + 1, + 4$
$10 - 11 AM$	$- 2, + 1, - 1, + 1, + 2, - 3$	$10 - 11 AM$	$+ 2, - 1, - 2, - 1, - 3$

7

th floor

6

th floor

5

th floor

4

th floor

3

rd floor

2

nd floor

1

st floor

Ground floor

1

st basement

2

nd basement

3

rd basement

4

th basement

On which floor was Pushkar at $11 AM$ ?

EASY

6th ICSE

IMPORTANT

ICSE NumbersWiz 6>Chapter 3 - Negative Numbers and Integers>Brain teaser>Q (iii)

Deepak and Pushkar are elevator operators. Use their work records for Monday morning, and the diagram given below, to answer the questions. In the work records, $+ 2$ means up two floors, $- 3$ means down three floors, and so forth.

Work Record		Work Record
Operator: Deepak		Operator: Pushkar
Start: Ground Floor		Start: Ground Floor
Time	Floors Travelled	Time	Floors Travelled
$8 - 9 AM$	$+ 2, - 1, - 3, + 4$	$8 - 9 AM$	$+ 1, - 2, - 2, + 1, - 2$
$9 - 10 AM$	$- 1, - 2, - 2, + 3, + 1$	$9 - 10 AM$	$+ 2, + 3, - 1, + 1, + 4$
$10 - 11 AM$	$- 2, + 1, - 1, + 1, + 2, - 3$	$10 - 11 AM$	$+ 2, - 1, - 2, - 1, - 3$

7

th floor

6

th floor

5

th floor

4

th floor

3

rd floor

2

nd floor

1

st floor

Ground floor

1

st basement

2

nd basement

3

rd basement

4

th basement

On which floor was Deepak's first trip of the day end?

MEDIUM

6th ICSE

IMPORTANT

ICSE NumbersWiz 6>Chapter 3 - Negative Numbers and Integers>Brain teaser>Q (iv)

Deepak and Pushkar are elevator operators. Use their work records for Monday morning, and the diagram given below, to answer the questions. In the work records, $+ 2$ means up two floors, $- 3$ means down three floors, and so forth.

Work Record		Work Record
Operator: Deepak		Operator: Pushkar
Start: Ground Floor		Start: Ground Floor
Time	Floors Travelled	Time	Floors Travelled
$8 - 9 AM$	$+ 2, - 1, - 3, + 4$	$8 - 9 AM$	$+ 1, - 2, - 2, + 1, - 2$
$9 - 10 AM$	$- 1, - 2, - 2, + 3, + 1$	$9 - 10 AM$	$+ 2, + 3, - 1, + 1, + 4$
$10 - 11 AM$	$- 2, + 1, - 1, + 1, + 2, - 3$	$10 - 11 AM$	$+ 2, - 1, - 2, - 1, - 3$

7

th floor

6

th floor

5

th floor

4

th floor

3

rd floor

2

nd floor

1

st floor

Ground floor

1

st basement

2

nd basement

3

rd basement

4

th basement

On which floor did Pushkar's sixth trip of the day end?

MEDIUM

6th ICSE

IMPORTANT

ICSE NumbersWiz 6>Chapter 3 - Negative Numbers and Integers>Brain teaser>Q (v)

Deepak and Pushkar are elevator operators. Use their work records for Monday morning, and the diagram given below, to answer the questions. In the work records, $+ 2$ means up two floors, $- 3$ means down three floors, and so forth.

Work Record		Work Record
Operator: Deepak		Operator: Pushkar
Start: Ground Floor		Start: Ground Floor
Time	Floors Travelled	Time	Floors Travelled
$8 - 9 AM$	$+ 2, - 1, - 3, + 4$	$8 - 9 AM$	$+ 1, - 2, - 2, + 1, - 2$
$9 - 10 AM$	$- 1, - 2, - 2, + 3, + 1$	$9 - 10 AM$	$+ 2, + 3, - 1, + 1, + 4$
$10 - 11 AM$	$- 2, + 1, - 1, + 1, + 2, - 3$	$10 - 11 AM$	$+ 2, - 1, - 2, - 1, - 3$

7

th floor

6

th floor

5

th floor

4

th floor

3

rd floor

2

nd floor

1

st floor

Ground floor

1

st basement

2

nd basement

3

rd basement

4

th basement

Who travelled the greater distance between $8 AM$ and $9 AM$ ?

MEDIUM

6th ICSE

IMPORTANT

ICSE NumbersWiz 6>Chapter 3 - Negative Numbers and Integers>Brain teaser>Q (v)

Deepak and Pushkar are elevator operators. Use their work records for Monday morning, and the diagram given below, to answer the questions. In the work records, $+ 2$ means up two floors, $- 3$ means down three floors, and so forth.

Work Record		Work Record
Operator: Deepak		Operator: Pushkar
Start: Ground Floor		Start: Ground Floor
Time	Floors Travelled	Time	Floors Travelled
$8 - 9 AM$	$+ 2, - 1, - 3, + 4$	$8 - 9 AM$	$+ 1, - 2, - 2, + 1, - 2$
$9 - 10 AM$	$- 1, - 2, - 2, + 3, + 1$	$9 - 10 AM$	$+ 2, + 3, - 1, + 1, + 4$
$10 - 11 AM$	$- 2, + 1, - 1, + 1, + 2, - 3$	$10 - 11 AM$	$+ 2, - 1, - 2, - 1, - 3$

7

th floor

6

th floor

5

th floor

4

th floor

3

rd floor

2

nd floor

1

st floor

Ground floor

1

st basement

2

nd basement

3

rd basement

4

th basement

Who travelled the greater distance between $9 AM$ and $11 A M$ ?

S K Gupta and Anubhuti Gangal Solutions for Exercise 5: Brain teaser

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