Question

9) Latha had b number of marbles. She kept 4 for
herself and distributes the rest equally among
her 3 friends. How many marbles did each
friend get​

Answer 1

Step-by-step explanation:

If you look deep about the question, you get simple mathematic or use of simple imagination skill.

Suppose in your class,

you have N student

Now, If you give 5 pencils to each student

which comes out to be total pencil given to all student 5N

While 10 pencils are left,

So total pencil (5N+10)

the total pencil was given to students = (5N+10)

Now again, 4 pencils given to each student,

which comes out to be total pencil given to all student 4N, While 20 pencils are left,

So total pencil (4N+20).

So, total pencils,

(4N+20) = (5N+10)

on using simple mathematics, you get

(5N-4N) = (20-10)

N=10.

for checking your answer correct or not

put N=10 in (4N+20)

& (5N+10)

You get both come out to be equal, which is 60.

so there are 60 pencils given to all 10 students.

Answer 2

Step-by-step explanation:

Lata had b no. of marble

she kept with her = 4 marble

Remaining no. of marble = b - 4

3 friends got (b - 4) no. of marble

therefore 1 friend got (b - 4)÷3 no. of marble

=b - 4 / 3