Maths
Get insights from 6.5k questions on Maths, answered by students, alumni, and experts. You may also ask and answer any question you like about Maths
Follow Ask QuestionQuestions
Discussions
Active Users
Followers
New answer posted
3 months agoContributor-Level 10
Sum of length = (72*5/18)*73
=1460 m
Length of platform = 1460 – 422
= 1040 m
New answer posted
3 months agoContributor-Level 10
Speed of A with respect to B
AB = 36 – 24 = 12 km/hr
Time taken by A to catch B
AB = 120/12 = 10 hours
New answer posted
3 months agoContributor-Level 10
Let total work is 60 (LCM of 20, 12 & 15)
Per day work
(Raj + Mohan) = 3 units
(Mohan + Sohan) = 5 units
(Raj + Shohan) = 4 units
(Raj + Mohan + Sohan) = (3 + 5 + 4)/2 = 6 units
Raj's per day work = 6 – 5 = 1 unit
Total time taken by Raj = 60 days
New answer posted
3 months agoContributor-Level 10
Total days taken by Mahesh alone = 45*4 = 180 days
Let the total work = 180 units (LCM of 180 and 60)
Mahesh per day work = 1 units
Mahesh and Anand per day work = 180/60 = 3 units
Anand per day work = 3 – 1 = 2
Time taken = 180/2 = 90 days
New answer posted
3 months agoContributor-Level 10
Food for 80 person = 150 days
Food for 1 person = 150 * 80
Food for 150 person = (150 * 80/150)
= 80 days
New answer posted
3 months agoContributor-Level 10
Let the total work is 300 units (LCM of 150,100 and 60)
A's per day work = 2 units
B's per day work = 3 units
C's per day work = 5 units
(A+ B + C)'s per day work = 2 + 3 + 5 = 10 units
Time taken = 300/10 = 30 Days
New answer posted
3 months agoContributor-Level 10
Let y = 2111x then,
y3 – 8y2 +16y – 4 = 0
Let three real roots be a, b and c then abc = and corresponding values of x be x1, x2, and x3\
111 (x1 + x2 + x3) = 2
x1 + x2 + x3 = 2/111
m + n = 2 + 111 = 113
Taking an Exam? Selecting a College?
Get authentic answers from experts, students and alumni that you won't find anywhere else
Sign Up on ShikshaOn Shiksha, get access to
- 65k Colleges
- 1.2k Exams
- 679k Reviews
- 1800k Answers