Question

find the value of a in the following proportions
1). a : 21 :: 11 : 33
2). 6 : 5 :: 3 : a
3). 3 : a :: a : 75​

Answer 1

Answer:

3 is

Step-by-step explanation:

5 of the year again itna bhi nahi aata hai

Answer 2

Answer:

1. 7

2. 2.5

3. 15

Step-by-step explanation:

1:-a/21=11/33

33a= 231

a=231/33

7

2. 6/5=3/a

6a=15

a=15/6

=2.5

3. 3/a=a/75

a²=225

a=✓225

a= 15