Write the first 6 multiples of 7. Which of them is also a multiple of 14?

The first 6 multiples of 7 are :

7 × 1 = 7, 7 × 2 = 14, 7 × 3 = 21, 7 × 4 = 28, 7 × 5 = 35, 7 × 6 = 42.

So, the multiples are 7, 14, 21, 28, 35, 42.

Among these, the multiples of 14 are 14, 28 and 42.

Hence, the first 6 multiples of 7 are 7, 14, 21, 28, 35, 42; of these 14, 28 and 42 are also multiples of 14.