Question

Ritu has 208 marbles of blue, green and yellow colours.The number of blue marbles she has is 4 less than thrice the number of green marbles while the number of yellow marbles is 10 less than twice the number of green marbles.How many marbles of each colour does she have?​

Answer 1

Answer:

b+g+w=54

P( selecting a blue marble ) =

54

b

3

1

=

54

b

b=18

Now,

P( selecting a green marble ) =

9

4

54

g

=

9

4

g=24

Therefore,

18+24+w=54

w=12

Hence, the jar contains 12 white marbles.