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# A and B together can do a piece of work in 10 days , but A alone can do the work in 15 days . How many days would B alone take to do the same work ?

## Class 8 Question

 Aishna Jain Jan 04, 2020

 Monika Riya Jan 05, 2020

 Akshat Bhatt Jan 05, 2020

 Jatin Grover Jan 29, 2020
30 days

 Sarthak Singh Mar 09, 2020
B completes his work in 30 days

 Tejas Official Apr 14, 2020

 Boye Gbolahan Apr 17, 2020
15 days

 Siddhant Kanchanwar May 03, 2020
1by30

 Rajesh Kumar Apr 06, 2020
Sabas

 R.k Singh Mar 01, 2020
30days

 Lucky Jha Mar 05, 2020
In 30 days

 Manoj Pande Jul 17, 2020

Given,
AB work together in=10 days
therefore, in 1 day they work =1/10part
A along can do same work in = 15 days
therefore, in 15 day A can work =1/15 part
hence B can do same work in=??
AB work =A+B
1/10 =1/15+B
1/10-1/15 =B
3-2/30 =B
1/30. =B
In 1 day B can do his work=1/30part
therefore B complete his work in 30 days

 Shubham Gautam Apr 10, 2020
B do work in 30 days

 Shiven Rojasara Jul 28, 2020

 Noor Mohammed May 09, 2020
A+B's complete work =10 ,there for A+B ,s complete in one day=1/10 ,A alone can do the in 1=1/15 , equitation 1/10+1/15=3-2/30 =1/30=30

 Renu Gupta Jun 07, 2020
In 30 days
by solving it

 Shrestha Ijarwal Feb 27, 2020
30

 Shoba Kumar Apr 02, 2020
B can finish his work in thirty days

 Prince Kumar Jul 23, 2020
30 day is a correct answer

 Guri Singh Jul 28, 2020
B can finish his work in 30 days or 1 month

 Alok Kumar Feb 07, 2020

 Archana Rayban Sep 28, 2020
B would take 30 days

 Alpesh Patel May 17, 2020

 Neha Sharma Apr 29, 2020
This writing is very dirty

 Sabiha Khan Aug 12, 2020

 Gupta Nidhi Jun 04, 2020
30 daya

B complete the work in 30 days =1 month

 Kusum Lata May 13, 2020
Sol: A and B together work in 10 days

(A+B)'s one day work = 1/10 part

A's one day work = 1/15 part

work done by B in a day =
= 1/10- 1/15

= 3-2/30
= 1/30 part
Ans: Alone work done by B is 30 days

 Shagufta Naz Aug 10, 2020
Plz do math in plain vopy

 Tanishka Gupta May 03, 2020
30 days is required ans

 Poornima Kannan Sep 23, 2020
30 days

 Bibhuti Bhusan Prusty Apr 21, 2020
B can finish his work in 30 days

 Johan Joseph Jul 20, 2020
30 DAYS .

 Kiran Varma Nov 19, 2020

B will complete the work in 30 days .

 Tanmay Gupta May 29, 2020
B completes his work in 30 days.

 Pranavkumar Khachar Sep 07, 2020
0 days because the work has already done by A

 Milkah Wambui May 03, 2020
B can complete his work in thirty days

 Haasini Guntuka Mar 27, 2020
(a+b) 1 day = 1/10

a alone = 1/15

b =?
b= 1/10 - 1/15
b =1/10*3-1/15*3 (eqvivalent)
b = 3/30-2/30
b= 1/30
So,

b alone would take 30 days

 Hared Shaaban Apr 06, 2020
If 10=2
15?
15

 Darshana Pal Jun 27, 2020
25 days something

 Yuvraj Singh Dedha May 05, 2020
Hi

 Laxmi Rathore Apr 11, 2020
30 days.

 Mantosh Singh May 20, 2020
B can finise his work in 30 days

 Sayantika Dey May 15, 2020
What is parliament

 Ananya Kumar Jul 23, 2020
(A+B) complete their work in 10 days
(A+B) 1 day's work = 1/10
A's 1 day work = 1/15
B's 1 day work = 1/10 - 1/15
»»» 1/10 × 3/3 = 3/30
1/15 × 2/2 = 2/30
››› 3-2/30 = 1/30
B completes his work in 30 days.

 Rampal Kumar Jun 14, 2020

 Ràtnàdèèp Ghàdgè Sep 17, 2020

 Suryakanta Singh Oct 26, 2020
B takes 30 days to do the work

He do his work in 30 days

 Shubh Singh Mar 09, 2020
Guug56

 Kaustubh Nath Jun 27, 2020

 Chhotu Kori Aug 09, 2020
Dvfcfcb

 Sarveena Maheen Aug 11, 2020
15

 Kritika Jain Aug 24, 2020
(A+B+C)'s one days's work=
10
1

So (A+B+C)'s 4 day's work=
10
4

=
5
2

Remaining part of the work=1−
5
2

=
5
3

5
3

part of the work done by (B+C)= 10 days
∴ 1 work done by (B+C)=
5
3

10

=
3
50

Days
∴A alone work=
10
1

50
3

=
25
1

Hence A alone complete the work in 25 days.

 Parv Sharma May 29, 2020
B complete its work in 30 I only take 5mins to solve it

 Seema Rani Apr 29, 2020
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 Nithin Rakoti Jun 17, 2020
We can conclude the answer as 30days
B can do the work in 30 days

 Anjali Gupta Feb 23, 2020
B complete his work in 30 days

 Prachi Sagar Aug 23, 2020
(A+B)Complete their work in 10 days.
(A+B)1 day's work =1/10
A's1 day work=1/15
3-2/30=1/30

B complete his work in 30 days

 Saanvitha Reddy Aug 18, 2020
n 10 days A + B can so = 1 work
In 1 day A+B can do = 1/10 work
In 15 days A can do = 1 work
In 1 day A can do = 1/15 work
Let in x days B can do = 1 work
so in 1day B can do 1/x work
In 1 day A+B can do = 1/10 work
1/15 + 1/x = 1/10
1/x = 1/10 - 1/15
1/x = 1/30
x = 30
Hence B can finish the work in 30 days

 Shlok Mishra Jul 31, 2020
A and B one day work= 1/10

A's one day work= 1/15

B's one day work= 1/10 - 1/15
= 3 - 2/30
= 1/30

# B can do that work in 30 Days.

 Rajiv Patel Jun 05, 2020
Kis subject ka

 Sanjivani Malunjkar Oct 08, 2020
B will complete it in 30 days

 Santosini Mahakud Jul 19, 2020
Nice bro

 Aman Kumar Aug 23, 2020
A and B can do a piece of work in 10 days.

Therefore A and B together can do 1/10 of work in one day.

A + B = 1/10…Eq..1

A alone can complete this work in 15 days. Thus A alone can do this work in 1/15.

Substituting the value of work done by A in Eq..1

A + B = 1/10

1/15 + B = 1/10

B = 1/10 - 1/15

B = (3 - 2)/30

B = 1/30

Thus, B can accomplish 1/30 of work in one day.

Accordingly, B alone could complete this work in 30 days.

Answer B alone could complete this work in 30 days

 Mayank Raj Aug 24, 2020
If A and B take 10 days to complete 1 work
so A and B take 1 day to complete 1/10 work
A alone take 15 days to complete 1 work
so A take 1 days to complete 1/15 work
so B take 1 day to complete 1/10-1/15=1/30
if 1/30 work B can do in 1 day
so 1 work complete in 1÷1/30=30 days

 Keerthi Reddy May 27, 2020

 Rishu Raj Apr 14, 2020
B alone take the same work in 30days

 Om Bhrat Jul 25, 2020
Yes the answer is in 30 days

 Daksh Chimnani May 04, 2020

 Love Soni May 21, 2020
9172127713 Whs me

 Inder Singh Jul 25, 2020
Answer: B complete his work in 30 days

 Ummat Saikh Aug 25, 2020
Qr opening

 Shivansh Tiwari Jul 31, 2020
A and B together do the work in 10 days
it means A's+B's one day work = 1/10
given that A alone can do work in 15 days
it means A's one day work= 1/15
so B's one day work= 1/10 - 1/15 = 1/30
B's one day work=1/30
so time taken by B to complete whole work will be 30 days

 Prachi Kumari Oct 28, 2020

 Deepak Gahlyan Jul 28, 2020
25 Days

B will take 30 days to do the work .

 Keshav Chargotra Sep 23, 2020
In 15

 Akshat Gandhi Feb 05, 2021
5

12.483

 Hake Akshay Mar 04, 2020
How many balls are used in a cricket match

 Shilpa Jha Sep 24, 2020
I think 5 days

 Ndrathod. Rathod Aug 01, 2020
Turhryyhyr

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