the ages of Rahul and Laxmi are in the ratio 5:7. Four years later the Sum of their ages will be 56 years.what are their present age?
Answers
Answer:
Rahul would be 20 and Laxmi would be 28
Step-by-step explanation:
1. You know that the sum of their ages is 56 so you need to subtract eight because they will both age four years. So 56 - 8 will be 48.
2. The ratio is 5:7. you need to add them together which will equal twelve (5 + 7 = 12)
3. Next, what you need to do is 48 divided by 12 which equals four. (48/12=4). this will be helpful
4. Now, what you need to do is get to the ratio. So the four you need to multiply it by 5 and 7. 5 x 4 = 20 and 7 x 4 = 28. Hence the answer will be 20 : 28. you need to put in order that the ratio was in order to get the correct answer
5. So Rahul would be 20 years old and Laxmi would be 28 years old. a good way to check if you have the correct answer is to add the answer up. so 20 + 28 = 48, which is what we worked out earlier which was their present age sum. Therefore the answer would be that Rahul is 20 and Laxmi is 28.
Answer:
age of rahul=20
age of laxmi=28
Step-by-step explanation:
age of rahul=5x
age of laxmi=7x
after four years
age of rahul=5x+4
age of laxmi=7x+4
sum of their ages=56
56=5x+4+7x+4
56=8+5x+7x
5x+7x=56-8
12x=48
x=48/12
x=4
age of rahul=5(4)=20
age of laxmi=7(4)=28
hope this will help you if it did mark as brainliest