Question

If 4/7 students of a class of strength 70 are boys, then find the no. of girls

Answer 1

Answer:

30

Step-by-step explanation:

Given that 4/7 students of a class are boys.

If 4/7 of them are boys, then (1 - 4/7 = 3/7) will be girls.

Now,

= (3/7) * 70

= 3 * 10

= 30.

Therefore, number of girls is 30.

Hope it helps!

Answer 2

$\underline{\textbf{Hey Mate Here Is Your Answer}}$

$\underline{\textbf{Given That }}$

In A Class Having Strength Equal To 70 And 4/7 Are Boys , Now We need To Find The Number Of Girls ..

$\underline{\textbf{Solution}}$

According To Question

Strength Of Class ( Total Number Of Students ) = 70 Students

Number Of Boys = 4/7 Of 70

Therefore Number Of Girls = Remaining Students

Therefore We Have

$\textbf{Number Of Girls = Total Number Of Students - Number Of Boys }$

That Is

$\mathbf{Number\:of\:Girls\: = \: 70\: - \: 4/7 \times 70 }$

Now Cancelling

$\mathbf{Number\:of\:Girls\: = \: 70\: - \: \frac{4}{\cancel{7}} \times \cancel{ 70} }$

That Is

$\mathbf{Number\:of\:Girls\: = \: 70\: - 4 \times 10}$

$\mathbf{ = \: 70\: - 40}$

$\mathbf{\therefore \:\:Number\:Of\:Girls\:=\:30}$

$\underline{\textbf{Hence The Required Answer Is }}$

$\boxed{\boxed{\mathbf{30 \: Girls }}}$

$\underline{\mathbf{\star \:\: BrainlyKing5 \:\:\star}}$

$\large{\blue{Thanks...}}$