Question

Exercise 9.3
1. Which of the given numbers are in proportion?
a) 16,4, 32,8
b) 18, 10, 9,5
c) 16, 30, 24, 45
d) 3, 4, 2,6
2. Find the value of x, if the given numbers are in proportion.
a) 7:15 :: X: 30
b) X: 3 :: 12 : 18
c) 30:x.: 45:24
d) 8:16 :: 25 : x
3. Use the given numbers to form a proportion.
a) 12, 10, 42, 35
b) 27,6, 108,24
c) 12, 10, 60, 50
d) 12, 135, 108, 15​

Answer 1

Answer:

Que - 2)

a) 14

b) 2

I know only this much ....

plz follow