Marissa is 10 years younger than Regan. In 10 years' time, Marissa's age will be 80% of regans age. How old is marissa now?
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let the age of Marissa be x years and Regan be y years...
so,
x + 10 = y -----(1)
After 10 years
=> 80% of y = x
=> 80y/100 = x
=> 4y = 5x
Using (1) in above equation
=> 4(x + 10) = 5x
=> 4x + 40 = 5x
=> x = 40
thus, y = x+10
y=50
hope it helps u...
have a great day ahead...
@Dolla$ign
so,
x + 10 = y -----(1)
After 10 years
=> 80% of y = x
=> 80y/100 = x
=> 4y = 5x
Using (1) in above equation
=> 4(x + 10) = 5x
=> 4x + 40 = 5x
=> x = 40
thus, y = x+10
y=50
hope it helps u...
have a great day ahead...
@Dolla$ign
salihmarwan6marwin:
can you do it using a table
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