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ad-work [718]
3 years ago
6

bridget has swimming lessons every fifth day and diving lessons every third day. If she had a swimming lesson and a diving lesso

n on May 5, when will be the next date on which she has both swimming and diving lessons?
Mathematics
2 answers:
lara [203]3 years ago
8 0
She had both on May 5

swimming lessons every 5th day
5,10,15,20

diving lessons every 3rd day...
3,6,9,12,15

so they both have a common multiple of 15

so fifteen days after May 5 = May 20 <==
d1i1m1o1n [39]3 years ago
5 0

Answer:

On May 20,

Step-by-step explanation:

In order to calculate on which date both her lessons will fall on the same date, we take the LCM of 3 and 5.

Factors of 3 ⇒ 1 × 3

Factors of 5 ⇒ 1 × 5

Since 1 is common, we take it once and multiply with other non-common factors.

Therefore LCM = 1 × 3 × 5 = 15

Thus after 15 days of 5th may = 20th May

she has both lessons on May 20 after May 5.

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