Time and Work Class-8 RS Aggarwal ICSE Maths Solutions Goyal

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 

Exe-11 A,

 Exe-11 B,

---

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

Thanks