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yawa3891 [41]
3 years ago
11

Brandon mows his lawn once every 5 days. Thomas mows his lawn every 3 days. If they are all mowing there lawn today, how many da

ys will they be mowing there lawn together again?
A. 3


B. 5


C. 8


D. 15
Mathematics
1 answer:
lisov135 [29]3 years ago
4 0

Answer: D. 15

Step-by-step explanation:

Given : Brandon mows his lawn once every 5 days.

Thomas mows his lawn every 3 days.

If they are all mowing there lawn today, then the number of days after which they will be mowing there lawn together again=  LCM (5, 3)

[LCM= Least common multiple]

Since 5 and 3 are co primes (having no common factor other than 1),

so LCM(5,3)= 5 x 3 = 15

Therefore, they will be mowing there lawn together again after 15 days .

Hence, the correct answer is D. 15 .

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