Answer:
Aman's age = 20, Arun's age = 28
Step-by-step explanation:
Let 
= Aman's age
Let 
= Arun's age
- - - -
(Sum of their age is 56 after 4 years in the future)
(Ages are in the ratio 5:7)
Now, we can use substitution to find for Arun's age:
∴ Arun is 
To find for Aman's age, we can use substitution:
∴ Aman is 20
Hope this helps :)
Answer:
The answer is 27
Step-by-step explanation:
9+9+9=27
9*3=27
9+9=18+9=27
Answer:
£12
Step-by-step explanation:
9.60 = 80% times y.
9.60 = 0.8y
Then, divide each side by 0.8 to get the equation in shape to solve for y.
y = 9.60/0.8
y=12
Answer
A. -30 points
B. 60 points
Step-by-step explanation:
20 points for correct answer and 10 points deducted for wrong answer
Each deduction is -10 while each correct answer gives + 20
4 questions correctly and 11 incorrectly
= 4(20) + 11(-10)
= 80-110 = -30 points
Second round
7 correct, 8 incorrect
= 7(20) - 8(10)
= 140-80 = 60 points
Answer:
25
Step-by-step explanation:
