Explain step by step
Answers
Answer:
Step-by-step explanation:
alex counted 2400 by 6's with 6 beginning
an=a+(n-1)d
an=2400,a=6,d=1
substituting the values
2400=6+(n-1)
n-1=2400-6
n-1=2394
n=2395
matthew counted 2400 in 4's beginning with 4
an=a+(n-1)d
an=2400,a=4,d=1
substituting the values
2400=4+(n-1)1
n-1=2396
n=2397
alex and matthew together counted 2395+2397=4792
Answer:
In order to find number counted by Alex which was also counted by Matthew we have find no. counted by Alex and Matthew individually .
For Alex , he started with 6 and went to 2400.
Numbers of counted by Alex in between = 2400 /6 = > 400
For Matthew , he started with 4 and went to 2400 .
Numbers of counted in between = 2400 / 4 = > 600.
Now , numbers counted by Alex were also counted by Matthew = 600 - 400
= > 200.
Hence , we get answer 200 .