5 yrs ago A was thrice as old as B and 10 yrs later, A shall be twice as old as B. what is percent age of B
a. 20
b. 50
c. 60
d. none of the above
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5 yrs ago A was thrice as old as B and 10 yrs later, A shall be twice as old as B. what is percent age of B
a. 20
b. 50
c. 60
d. none of the above
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Answer:
Answer is a which is 20
Step-by-step explanation:
let a be x and b be y
x-5=3y-15
x+10=2y+20
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Answer:
Answer is option (A) that means 20