25. Which of the following statement
is not true?(а) 4:7=5:9(b) 75: 25
= 12g: 60g(с) 30:80 = 6:16(d) 12:36
— 14:42.
ООО
C С
OD
Answers
Answered by
1
Answer:
Cases (c) and (d) are possible
Step-by-step explanation:
Let's take case by case. We know that
product of mean = product of extreme
Case (a) :
4:7=5:9
Product of mean = 7 x 5 = 35
Product of extreme = 4 x 9 = 36
NOT POSSIBLE
Case (b) :
75:25=12:60
Product of mean = 25 x 12 = 300
Product of extreme = 12 x 60 = 720
NOT POSSIBLE
Case (c) :
30:80=6:16
Product of mean = 80 x 6 = 480
Product of extreme = 30 x 16 = 480
POSSIBLE
Case (d) :
12:36=14:42
Product of mean = 36 x 14 = 504
Product of extreme = 12 x 42 = 504
POSSIBLE
Similar questions