Question

ravi is twice as tall as his sister. the ratio of Ravi's height to his sister 's height is
a)1:2
b)2:1
c)1:1
d)2:3

Answer 1

Let the height of Rohan's sister be = x
Then Rohan's height is = 2x


Ratio = 2x/x
= 2/1 = 2: 1

The answer is b) 2:1

Answer 2

2:1.
ravi=2
sister=1


×=5+2×+3×
×=5+5×
×-5×=5
4×=5
×=4+5=9