Question

How many numbers from $11$ to $50$ are there which are exactly divisible by $7$ but not divisible by $3$?

• A. $2$
• B. $4$
• C. $5$
• D. $6$
• E. $7$

Answer 1

The correct option is B $4$

The number from 11 to 50, which are divisible by 7 are 14, 21, 28, 35, 42 and 49.
But out of these 21 and 42 are divisible by 3.
the required numbers are 14, 28, 35 and 49.
Hence, option (B) is the correct answer.