Question

please answer me by using proportion method very important​

Answer 1

Step-by-step explanation:

• here in this example X / Y= k (constant of a variation)
• so as the one quantity increase another also be increased.
• so we will consider the number of benches needed to be x.
• and then we cross multiply them and we will get the number of benches.

Answer 2

Answer:

1st one is- It will require 60 benches to seat 240 students.

2nd one is- That bird will flaps it's wings for 276 times in 2 minutes.