Orlando has some red, green and blue marbles in a jar.The proportion o

1.	Orlando has some red, green and blue marbles in a jar.The proportion of red marbles isThe proportion of blue marbles is 3There are four green marbles.a How many marbles are in the jar in total?5"b How many marbles are red?c How many marbles are blue?
Answer» Let total number of marbles are n Then,Number of red marbles = 2n/5Number of blue marbles = n/3Number of green marbles = 4 So, 2n/5 + n/3 + 4 = nn - 2n/5 - n/3 = 4(15n - 6n - 5n) = 604n = 60n = 60/4 = 15 Total number of marbles in Jar = 15 Number of red marbles = 2*15/5 = 6 Number of blue marbles = 15/3 = 5

Orlando has some red, green and blue marbles in a jar.The proportion of red marbles isThe proportion of blue marbles is 3There are four green marbles.a How many marbles are in the jar in total?5"b How many marbles are red?c How many marbles are blue?

Answer»

Let total number of marbles are n

Then,Number of red marbles = 2n/5Number of blue marbles = n/3Number of green marbles = 4

So, 2n/5 + n/3 + 4 = nn - 2n/5 - n/3 = 4(15n - 6n - 5n) = 604n = 60n = 60/4 = 15

Total number of marbles in Jar = 15

Number of red marbles = 2*15/5 = 6

Number of blue marbles = 15/3 = 5