Question

1 If a : b= 2:3 and b:c= 4:5, the ratio a:b:c
is equal to
(a) 4:6:5
(b) 12:8:15
(c) 8: 12:15
(d) 2:3:4​

Answer 1

$\sf{Answer}$

Step by step explanation:-

Given :- a: b = 2:3

b :c = 4:5

In given ratio b is the common So,Take LCM of b in their ratios

3,4 LCM is 12

So, a : b = 2:3 Multiply 4 to get b = 12

a: b = 2:3(4)

a: b = 8 : 12

Similarly

b : c = 4:5 Multiply with 3 to get b = 12

b :c. = 4:5 (3)

b : c. = 12:15

Now if u observe ratio of b is same

a : b is 8:12

b : c is 12:15

Now a : b :c is. 8 : 12 :15 option c :)

Answer 2

2:3:4 is answer I hope it is right