Question

45 km : 60 km and 12 hours : 15 hours

Answer 1

Answer:

Extreme terms = 45, 15

Mean terms = 60, 12

Product of extreme terms = 45 × 15 = 675

Product of mean terms = 60 × 12 = 720

In proportion,

Product of extreme terms = Product of mean terms

But 675 is not equal to 720.

Hence, 45km : 60km and 12 hours : 15 hours are not in proportion.