the ages of Rahul and Arun Aryan ratio 5 is to 7 four year later the sum of their ages will be 56 what are their present ages??????
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the ages of Rahul and Arun Aryan ratio 5 is to 7 four year later the sum of their ages will be 56 what are their present ages??????
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Step-by-step explanation:
CURRENT AGE = 5:7
AFTER 4 YEARS THEIR AGE = 5X + 4 , 7X + 4
THERE SUM = 56
SO , THEIR CURRENT AGE = ?
5X + 4 + 7X + 4 = 56
12X + 8 =56
12X = 56 - 8 = 48
X = 48 / 12 = 4
THEREFORE , RAHUL'S AGE = 5 X 4 = 20
ARUN'S AGE = 7 X 4 = 28
HOPE IT HELPS U ^_^
Answer:
20years
Step-by-step explanation:
current age =5:7
after
4 years their age will be 5x+4,7x+4years
sum=56
so, present age is?
5x+4+7x+4years
12x+8=56
12x=56-8
12x=48
x=48/12
x=4
b
Rahul's age =5*1=5
Harmon's age=7*1=7