**Time and Work Class-8 RS** Aggarwal ICSE Maths Solutions Goyal Brothers Prakashan Chapter-11. We provide step by step Solutions of Exercise / lesson-11 **Time and Work** for ICSE **Class-8 RS** Aggarwal Mathematics.

Our Solutions contain all type Questions of Exe-11 A, Exe-11 B, with Notes to develop skill and confidence. Visit official Website **CISCE** for detail information about ICSE Board Class-8 Mathematics.

Board | ICSE |

Publications | Goyal brothers Prakshan |

Subject | Maths |

Class | 8th |

Chapter-11 | Time and Work |

Writer | RS Aggrawal |

Book Name | Foundation |

Topics | Solution of Exe-11.a, 11.b |

Academic Session | 2021-2022 |

**Time and Work Class-8 RS** Aggarwal ICSE Maths Solutions Goyal Brothers Prakashan Chapter-11

–: Select Topics :–

**Notes on Time and Work **

If a person can complete a work in days, then in day he does 1/ of the work. We have

If a person completes of a work in day, then he requires number of days to complete the work

If part of the work has been done and the remaining part of the work has to be done by a person A, then

If times as good ·a workman as , then

i) Ratio of work done by in the same time

ii) Ratio of time taken by to finish the work

If some persons work together to do a piece of work, then the money paid to them is divided among them in the ratio of their one day’s (or one hour’s) work.

(i) Suppose A can finish a piece of work in 8 days.

Then, work done by A in 1 day = ¹/₈ [by unitary method].

(ii) Suppose that the work done by A in 1 day is ¹/₆

Then, time taken by A to finish the whole work = 6 days.

(i) Suppose if a person A can finish a work in n days.

Then, work done by A in 1 day = 1/nᵗʰ part of the work.

(ii) Suppose that the work done by A in 1 day is 1n1n

Then, time taken by A to finish the whole work = n days.

(ii)If times as good ·a workman as , then

i) Ratio of work done by in the same time

ii) Ratio of time taken by to finish the work

5) If some persons work together to do a piece of work, then the money paid to them is divided among them in the ratio of their one day’s (or one hour’s) work.

** ****Time and Work Exe-11 A,Class-8 RS** Aggarwal ICSE Maths Solutions Goyal Brothers Prakashan

(Page- 145-146)

#### Question 1:

A can do a piece of work in 15 days while B can do it in 10 days ……………….. to do it ?

#### Question 2:

A, Band C can do a piece of work in 12 days, 15 ………………….. all together finish it ?

#### Question 3:

A and B together can do ………………… take to do it ?

#### Question 4:

……………………

……………………

…………………..

……………………

#### Question 20:

A pipe can fill a tank in 16 hours. Due to a leak ………………… leak take to empty it ?

**Time and Work Exe-11 B,**

**Goyal Brothers Prakashan ICSE Class-8 Mathematics**

#### (Page 146-147)

#### Question 1:

If a work can be completed by A in 30 days and by B in 60 days, then the number of days taken by them to finish the work, working together, is :

……………..

#### Question 2:

A can do a job in ……………. do the job alone ?

……………….

#### Question 3:

…………………….

…………………….

…………………….

#### Question 12:

A cistern can be filled by pipes A and B in ……………… will be full in

…………………

–: End of Time and Work Solutions for ICSE Class-8 :–

Return to- RS Aggarwal Solutions for ICSE Class-8 Goyal Brothers Prakashan

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