13 years ago shabirs mother was 7 times as old as he was. she is now 48 years how many years old shabir is now
Answers
Firstly we will have to make the common component equal in both the ratios, because only after that we can compare the two ratios simultaneously.
The LCM of b
LCM of 9 and 4 = 36
5 : 9
x : 36
Therefore, x = (36 × 5) ÷ 9
x = 20
Now we know that the valu of b should be 20 so multiply other components as per b
a : b
5 : 9
y : 20
y = 100/9
b : c
4 : 7
20 : z
z = 35
Thus
a : b : c
100÷9 : 20 : 35
Or to remove the denominator, multiply the ratio by 9
100 : 180 : 315
Simplify this to,
20 : 36 : 63
P. S please pardon me if there are any calculation errors, but the method of solving the question is how I have attempted.
Step-by-step explanation:
shabirs mother is now 48 years old.
13 years ago she was 35
ie, 48-13=35
consider 13 year ago shabirs age is 'x'
as per the question
7X =35
X=35/7
= 5
There fore to find shabirs current age we have to add 13
ie,. 5+13=18
so now shabirs age =18
,hope you would understand.