virus definitions are very old

The mass of one atom of hydrogen taken as 1 is called the atomic mass uni..

How old is Andrew now, if he will be above 20 after 8 years? => 12 years or Above 12 years or Below 12 years or None of the above..

Gary is 6 years old and Ethan is 4 years old. Find the ratio of Gary's age to Ethan's age. => 2 : 3 or 1 : 2 or 3 : 2 or 1 : 3..

Tanya is 6 times as old as Annie. 8 years hence, she will be 2 times as old as Annie. Find their ages. => 12 years, 2 years or 18 years, 3 years or 24 years, 4 years or 6 years, 1 years..

Victor is 468 weeks old. Express his age in years. => 12 years or 11 years or 10 years or 9 years..

5 years ago, Ursula was thrice as old as Alice. After 8 years Ursula will be twice as old as Alice. What are their present ages? => Ursula: 44 years, Alice: 18 years or Ursula: 8 years, Alice: 5 years or Ursula: 49 years, Alice: 26 years or Ursula: 39 years, Alice: 23 years..

The scatter plot shows the number of hours children of different ages sleep. Find the number of extra hours a 2 year old child sleeps compared to a 4 year old child. => 6 or 4 or 3 or 5..

Sam's age (S) is twice the sum of Paula's age (P) and Amy's age (A) decreased by 3. What is Sam's age, if Paula is 10 years old and Amy is 7 years old? => 31 years or 34 years or 10 years or 7 years..

Charles is 14 years younger than Jason. What is Jason's age if Charles is 39 years old? => 26 or 53 or 25 or 54..

The age of students in a class is shown in the line plot. Find the number of students who are at least 12 years old. => 10 or 11 or 14 or 9..