Question

1. Determine if the following are in proportion.
(a) 15, 45, 40, 120 (b) 33, 121, 9,96
(d) 32, 48, 70, 210 (e) 4, 6, 8, 12
(c) 24, 28, 36, 48
(0) 33, 44, 75, 100​

Answer 1

Answer:a:yes

b:no

d:no

e:yes

c:no

0:yes

Step-by-step explanation:

Answer 2

Answer:

Step-by-step explanation:

If the ratio of first to the second is equal to ratio to third to the fourth, these will be in proportion

S.no      Problem               First to second ratio     third to fourth ratio       Yes/No

a)          15, 45, 40, 120         15 /45 = 1:3                   40 /120  = 1:3                  Yes

b)          33, 121, 9, 96           33/121 = 3:11                  9/96 = 3:23                 No      

c)          24, 28, 36, 48           24/28 = 6:7                  36/48 = 3:4                 No

 d)          32, 48, 70, 210          32 /48 = 2:3                 70/210 = 1:3                No

e)           4, 6, 8, 12                   4/6 = 2:3                      8/12 = 2:3                   Yes

f)            33, 44, 75, 100          33/44 = 3:4                 75/100 = 3:4                Yes