Answer:
Step-by-step explanation:
si que
Let's assume the number of students in the class be x.
Given that, Two-thirds of students in a class are girls.
So, number of girls 
Now ne-half of the girls wear glasses. So, one-half of
is
= 
=
Cancel out 2 from both numerator and denominator.
So, one third of the students are girls who wear glasses.
So, the correct choice is E.
Answer: Option A)
is the correct expansion.
Explanation:
on applying binomial theorem, 
Here a=3c,
and n=6,
Thus, 
⇒ 
⇒
⇒
⇒
Answer:
80 miles
Step-by-step explanation:
since 0.5in =20mi
2in= (2×20)/0.5
40÷0.5
=> 80mi
They weigh the same since they are both ten tons