How many numbers from 11 to 50 are there which are exactly divisible by 7 but not by 3?
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Answered by
12
Hello I can help you.
Step 1)- Find all multiples of 7 from 11 to 50.
They are 14,21,28,35,42,and 49.
Step 2)- Check whether they are divisible by 3.
The numbers divisible by 3 are 21, and 42.
Step 3- Remove these numbers from the list and you get the answer.
The remaining numbers will be 14,28,35 and 48.
Step 1)- Find all multiples of 7 from 11 to 50.
They are 14,21,28,35,42,and 49.
Step 2)- Check whether they are divisible by 3.
The numbers divisible by 3 are 21, and 42.
Step 3- Remove these numbers from the list and you get the answer.
The remaining numbers will be 14,28,35 and 48.
Answered by
4
Answer:
FOUR Numbers are there from 11 to 50 that are divisible by 7 but not by 3
Step-by-step explanation:
1st lowest number divisible by 7
(range 11 to 50)=2*7=14
Largest Number = 7*7=49
No. of such numbers =(7–2)+1=6
No. of common numbers divisible by 3 & 7=2
(7*3=21; 21*2=42)
6–2= 4
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