At present Lili is 23 years old and Medrin is 15 years old. How many years ago was Lili twice as old as Mehrin?

At present Lili is 23 years old and Medrin is 15 years old. How many years ago was Lili twice as old as Mehrin? Correct Answer 7

Hints: ধরি, x বছর পূর্বে লিলির বয়স মিলির বয়সের দ্বিগুন ছিলো । ( 23 - x) = 2 ( 15 - x) 23 - x = 30 - 2x 2x - x = 30 - 23 x = 7
Bissoy MCQ

Related Questions

In a cricket season, Bangladesh defeated Australia twice, West Indies defeated Bangladesh twice, Australia defeated West Indies twice , Bangladesh defeated New Zealand twice, West Indies defeated New Zealand twice. Which country has lost most number of times ?
A is three as old as B. C was twice -as old as A four years ago. In four years time, A will be 31. What are the present ages of B and C?
The sum of the present ages of two cousins is 46 years. Eight years ago, the elder one was twice as old as the younger one. What is the present age of the elder cousin?
Kalam has three daughters; Shaila , Meena and Tina. Three years ago, when Kalam was twice as old as Tina , he was 30 years older than sMeena Now he is 47 years older than Shaila In 4 years. Shaila will be half as old as Tina What is the sum of the current ages of Kalam and his three daughters ?
Arif is 4 times as old as Bobby,in 6 years, Bobby will be twice as old as Sara. Four years from now Arif will be 36 years old,how old will Sara be in 5 years?
Eighteen years ago , a father was three times as old as his son. Now the father is only twice as old as his son. Then the sum of the present ages of the son and the father is-
Eighteen years ago,a father was three time as old as his son.Now the father is only twice as old as his son. Then the sum of the present ages of the son and the father-
b.Eighteen years ago, a father was three times as old as his son. Now, the father is only twice as old as his son. then, the sum of the present ages of the son and the father is:
Today jishan is twice as old as Farid and Samsu is 2 younger than Farid four years ago Jishan was 4 times as old as Samu. How old is Jishan now?
Two years ago, Tim was three times as old as susie . Today he is twice as old as susie. How old is Tim today?