# ML Aggarwal Integers Exe-1.4 Class 7 ICSE Maths Solutions

ML Aggarwal Integers Exe-1.4 Class 7 ICSE Maths Solutions. We Provide Step by Step Answer of Exe-1.4 Questions for Integers as council prescribe guideline for upcoming board exam. Visit official Website CISCE for detail information about ICSE Board Class-7.

## ML Aggarwal Integers Exe-1.4 Class 7 ICSE Maths Solutions

Board | ICSE |

Publications | Avichal Publishig Company (APC) |

Subject | Maths |

Class | 7th |

Chapter-1 | Integers |

Writer | ML Aggarwal |

Book Name | Understanding |

Topics | Solution of Exe-1.4 Questions |

Edition | 2023-2024 |

**Integers Exe-1.4**

ML Aggarwal Class 7 ICSE Maths Solutions

Page-21

**Question 1. Evaluate the following:**

(i) (-36) ÷ (-9)

(ii) 150 ÷ (-25)

(iii) (-270) ÷ 27

(iv) (-59) ÷ 59

(v) 0 ÷ (-17)

(vi) (-784) ÷ (-56)

**Answer:**

**(i) (-36) ÷ (-9) = -36/-9**

= +4

**(ii) 150 ÷ (-25) = 150/-25**

= -6

**(iii) (-270) ÷ 27 = -270/27**

= -10

**(iv) (-59) ÷ 59 = -59/59**

= -1

**(v) 0 ÷ (-17) = 0/-17**

= 0

**(vi) (-784) ÷ (-56) = -784/-56**

= 14

**Question 2. Evaluate the following:**

(i) 13 ÷ [(-2) + 1] (ii) (-47) ÷ [(-45) + (-2)] (iii) [(-6) + 5] ÷ [(-2) + 1] (iv) [(-48) ÷ (-6)] ÷ (-2)

**Answer:**

**(i) 13 ÷ [ (-2) +1 ]**

= 13 ÷ [ -2 +1 ]
= 13 ÷ (-1)

= -13

**(ii) (-47) ÷ [ (-45) + (-2) ]**

= (-47) ÷ (-47)

= 1

**(iii) [ (-6) + 5 ] ÷ [ (-2) +1 ]**

= [ -6 +1 ] + [ -2 +1 ]
= (-1) ÷ (-1)

= 1

**(iv) [ (-48) ÷ (-6) ] ÷ (-2)**

= 8 ÷ (-2)

= -4

**Question 3. Verify that (a ÷ b) ÷ c ≠ a ÷ (b ÷ c) for a = -225, b = 15 and c = -3.**

**Answer:**

**Question 4. Verify that a ÷ (b ÷ c) ≠ (a ÷ b) ÷ (a ÷ c) for**

(i) a = -10, b = 1 and c = 1

(ii) a = 12, b = 1 and c = -2

**Answer:**

**a ÷ (b ÷ c) ≠ (a ÷ b) ÷ (a ÷ c)**

= (12/1) + (12/-2)

= 12 – 6

= 6

**Question 5. Fill in the blanks to make the following statements true:**

(i) 239 ÷ …….. = 1

(ii) (-85) ÷ …….. = -1

(iii) (-213) ÷ ….. = 1

(iv) (-43) ÷ …… = 43

(v) …….. ÷ (-21) = 4

(vi) (-66) ÷ ……. = -3

**Answer:**

**(i) 239 ÷ …….. = 1**

239 ÷ 239 = 1

**(ii) (-85) ÷ …….. = -1**

(-85) ÷ (85) = -1

**(iii) (-213) ÷ ….. = 1**

(-213) ÷ -213 = 1

**(iv) (-43) ÷ …… = 43**

(-43) ÷ -1 = 43

**(v) …….. ÷ (-21) = 4**

-21 × 4 = -84

(-84 ) ÷ (-21) = 4

**(vi) (-66) ÷ ……. = -3**

(-66) ÷ 22 = -3,

**Question 6. In competition 3 marks are given for every correct answer and (-2) marks are given for every incorrect answer and no marks for not attempting any question.**

(i) Sachin scored 24 marks. If he got 14 correct answers, how many questions has he attempted incorrectly?

(ii) Nalini scores (-7) marks in this competition, though she has got 9 correct answers. How many questions she has attempted

incorrectly?

**Answer:**

In a competition,

3 marks for every correct answer and (-2) marks for every incorrect answer.

No marks for non – attempting the question.

Sachin got 14 correct answers, and got 24 marks he attempted 14 correct answer

He would have got 14 × 3 = 42 marks

But to get 24 marks 42 -24 = 18 marks were deducted due to incorrect answer.

He attempted 18/2

= 9 question incorrect.

(ii) nalini scored (-7) marks, she got 9 correct answers, so she would have 9 × 3 = 27

But she got (-7) marks

So , 27 + 7 = 34 marks were deducted due to incorrect answers.

Number of incorrect answers = 34/2

= 17 question

**Question 7. An elevator descends into a mine shaft at the rate of 6 m/min. If the descend starts from 10 m above the ground level, how long will it take to reach the shaft 350 m below the ground level?**

**Answer:**

Rate of elevator = 6 m/min

And it was started 10m above the ground level

Depth below ground level = 350 m

Total depth = 350 + 10 = 360

Time taken = 360/6 minutes

= 60 minutes

= 1 hour

— : End of ML Aggarwal Integers Exe-1.4 Class 7 ICSE Maths Solutions :–

Return to **– **ML Aggarwal Maths Solutions for ICSE Class -7

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