Solve for the unknown quantity in each proportion k/3=3/9
A. 1
B. 3
C. 9
D. 27
1/k=4/20
A. 4
B. 5
C. 6
D. 17
20/5=m/25
A. 4
B. 40
C. 100
D. 120
4/7=12/g
A. 21
B. 15
C. 24
D. 3
4/5=72/g
A. 73
B. 90
C. 85
D. 18
10/25=r/20
A.4
B.5
C.8
D.200
12/8=15/k
A.11
B.120
C.9
D.10
9/12=15/n
A.18
B.20
C.22
D.17
6/n=21/28
A.13
B.9
C.8
D.15
b/16=17.5/20
A.140
B.14
C.18.5
D.13
Answers
Answer:
Step-by-step explanation:
Hi,
Given that k/3 = 3/9
On multiplying by 3 on both sides, we get
k = 3/9*3 = 1
Option (A) is the correct answer.
Given that 1/k = 4/20
On cancelling out common factor 5 on R.H.S, we get
1/k = 1/5
Multiplying by 5k on both sides, we get
5 = k
On rearranging , we get k = 5
Option (B) is the correct answer.
Given 20/5 = m/25
On simplifying and rearranging the terms we get
m/25 = 4
On multiplying by 25 on both sides, we get
m = 4*25 = 100
Option (C) is the correct answer
Given that 4/7 = 12/g
On multiplying by 7g on both sides, we get
4g = 84
ON dividing by 3 on both sides , we get
g = 21
Option (A) is the correct answer
Given that 4/5 = 72/g
On multiplying by 5g on both sides , we get
4g = 360
On dividing by 4 on both sides, we get
g = 90
Option (B) is the correct answer
Given that 12/8 = 15/k
On multiplying by 8k on both sides, we get
12k = 120
On dividing by 12 on both sides, we get
k = 10
Option (D) is the correct answer
Given that 9/12 = 15/n
On multiplying by 12n on both sides, we get
9n = 180
On dividing by 9 on both sides, we get
n = 20
Option (B) is the correct answer.
Given that 6/n = 21/28
On multiplying by 28n on both sides and rearranging, we get
21n = 168
Dividing by 21 on both sides, we get
n = 8
Option (C) is the correct answer
Given that b/16 = 17.5/20
On multiplying by 16 on both sides, we get
b = 17.5*16/20
= 14
Option (B) is the correct answer.
Hope, it helps !