Question

1. Which of the following are in proportion?
a) 21, 35, 24, 40 b) 5,7, 40, 64​

Answer 1

Answer:

a) is in proportion

Step-by-step explanation:

$21 \times 40$

$= 840$

$35 \times 24$

$= 840$

hence proved

Answer 2

Answer:

a) is in proportion   b)not in proportion

Step-by-step explanation:

A)21x40=840

   35x40=840

B)5x64=320

  7x40=280

Brainliest