it takes raiz 30 minute to mark a peper,razi only takes 25 minutes to mark a peper,if they both start marking paper at 11;00am what is the first time they will finish marking paper at same time?
1:30
LCM(25,30) = 150 minutes
11:00 + 2:30 = 13:30, or 1:30 pm
1:30
. It takes Riaz 30 minutes to mark a paper, Razi only takes 25 minutes to mark a paper, if they both start marking a paper at 11:00 AM, what is the first time they will finish marking a paper at same time?
LCM of 25,30 = 5x5x3x2 = 150 minutes
10:00Am to 11:00AM = 60 Minutes
11:00Am to 12:00Pm = 60 Minutes
12:00pm to 12:30 pm= 30 minutes
60min+ 60min+30min = 150 Minutes
So the time is 12:30AM
To find the first time that Raiz and Razi will finish marking papers at the same time, we need to determine the least common multiple (LCM) of their individual marking times.
The LCM of two numbers is the smallest multiple that is evenly divisible by both numbers.
In this case, the marking times for Raiz and Razi are 30 minutes and 25 minutes, respectively.
To find the LCM, we can follow these steps:
Step 1: List the multiples of each number until you find a common multiple.
- For Raiz (30 minutes): 30, 60, 90, 120, ...
- For Razi (25 minutes): 25, 50, 75, 100, ...
Step 2: Identify the first common multiple.
- From the lists above, the first common multiple is 150 minutes.
Therefore, Raiz and Razi will finish marking papers at the same time after 150 minutes.
To determine the actual time, we can add this duration to the initial start time of 11:00 am:
11:00 am + 150 minutes = 1:30 pm
So, Raiz and Razi will finish marking papers at the same time at 1:30 pm.