Correct option is D
Given:
Time taken by four runners to complete one round:
280 sec, 350 sec, 420 sec, 560 sec
Solution:
Prime factorization:
LCM = = 8400 sec
All Courses
Question
Four runners started running simultaneously from a point on a circular track. They took 280 seconds, 350 seconds, 420 seconds and 560 seconds, respectively, to complete one round. After how much time (in seconds) do they meet at the starting point for the first time?
Free Tests
Free
Must Attempt
SSC GD PYP (Held on 4 Feb 2025 S1)
English
80 Questions
160 Marks
60 Mins
EnglishFree
Must Attempt
SSC GD Constable Exam Day Based Mock 1
English- 80 Questions
- 160 Marks
- 60 Mins
EnglishFree
Must Attempt
Mathematics Section Test 1
English- 20 Questions
- 40 Marks
- 25 Mins
EnglishSimilar Questions
- 1)LCM of even prime number and least composite number is
- 2)
Find the smallest number which, when divided by 12,18 and 24 , leaves a remainder of 5 in each case.
- 3)
What is the largest 4 digit number that is divisible by 3,7,11,13 ?
- 4)
Find the smallest number which when increased by 20 is completely divisible by 12, 20, 15, 18 and 24.
- 5)
Three bells start ringing after interval of 20 minutes, 25 minutes and 40 minutes. They ring simultaneously at 8:00 am. They will ring simultaneously again at
- 6)
Three bells start ringing after interval of 20 minutes, 25 minutes and 40 minutes. They ringsimultaneously at 8: 00 am. They will ring simultaneously again at :
- 7)
The largest four-digit number which when divided by 9, 18 and 23, leaves a remainder 5 in each case, is:
- 8)
The LCM of 26, 34, 221 and 195 is:
- 9)
The LCM of two numbers is 105 and numbers are in ratio 5 : 3. Find sum of numbers.
- 10)
The LCM of 44, 32, 176 and 352 is:
Access ‘SSC GD’ Mock Tests with
- 60000+ Mocks and Previous Year Papers
- Unlimited Re-Attempts
- Personalised Report Card
- 500% Refund on Final Selection
- Largest Community
446k+ students have already unlocked exclusive benefits with Test Prime!
Suggested Test Series
SSC GD Constable 2026 Mock Test
SSC GD Constable 2026 Mock Test
911 Tests + 3 Free Tests
SSC CGL (Tier 1 + Tier 2) 2026 Mock Test
SSC CGL (Tier 1 + Tier 2) 2026 Mock Test
1142 Tests + 3 Free Tests
SSC Selection Post Phase XIV 2026 Mock Test
SSC Selection Post Phase XIV 2026 Mock Test
656 Tests + 3 Free Tests
SSC Stenographer Grade C & D 2026 Mock Tests
SSC Stenographer Grade C & D 2026 Mock Tests
421 Tests + 2 Free Tests
SSC CHSL (Tier 1 + Tier 2) 2026 Mock Test
SSC CHSL (Tier 1 + Tier 2) 2026 Mock Test
1093 Tests + 3 Free Tests
Access ‘SSC GD’ Mock Tests with
- 60000+ Mocks and Previous Year Papers
- Unlimited Re-Attempts
- Personalised Report Card
- 500% Refund on Final Selection
- Largest Community
446k+ students have already unlocked exclusive benefits with Test Prime!
Suggested Test Series
SSC GD Constable 2026 Mock Test
SSC GD Constable 2026 Mock Test
911 Tests + 3 Free Tests
SSC CGL (Tier 1 + Tier 2) 2026 Mock Test
SSC CGL (Tier 1 + Tier 2) 2026 Mock Test
1142 Tests + 3 Free Tests
SSC Selection Post Phase XIV 2026 Mock Test
SSC Selection Post Phase XIV 2026 Mock Test
656 Tests + 3 Free Tests
SSC Stenographer Grade C & D 2026 Mock Tests
SSC Stenographer Grade C & D 2026 Mock Tests
421 Tests + 2 Free Tests
SSC CHSL (Tier 1 + Tier 2) 2026 Mock Test
SSC CHSL (Tier 1 + Tier 2) 2026 Mock Test
1093 Tests + 3 Free Tests
Similar Questions
- 1)LCM of even prime number and least composite number is
- 2)
Find the smallest number which, when divided by 12,18 and 24 , leaves a remainder of 5 in each case.
- 3)
What is the largest 4 digit number that is divisible by 3,7,11,13 ?
- 4)
Find the smallest number which when increased by 20 is completely divisible by 12, 20, 15, 18 and 24.
- 5)
Three bells start ringing after interval of 20 minutes, 25 minutes and 40 minutes. They ring simultaneously at 8:00 am. They will ring simultaneously again at
- 6)
Three bells start ringing after interval of 20 minutes, 25 minutes and 40 minutes. They ringsimultaneously at 8: 00 am. They will ring simultaneously again at :
- 7)
The largest four-digit number which when divided by 9, 18 and 23, leaves a remainder 5 in each case, is:
- 8)
The LCM of 26, 34, 221 and 195 is:
- 9)
The LCM of two numbers is 105 and numbers are in ratio 5 : 3. Find sum of numbers.
- 10)
The LCM of 44, 32, 176 and 352 is:
