PSLE Riordan kept his green and white marbles in two boxes. The ratio of the number of green to white marbles in the first box was 1 : 4 and it was 1 : 6 in the second box. The two boxes contained the same number of marbles. What fraction of Riordan's marbles were white marbles?
First box |
Second box |
1x35 35 u |
1x35 35 u |
5x7 |
7x5 |
Green |
White |
Green |
White |
1x7 |
4x7 |
1x5 |
6x5 |
7 u |
28 u |
5 u |
30 u |
The total number of marbles in the first box and the second box is the same. Make the total number of marbles in each box the same.
LCM of 5 and 7 is 35.
Total number of white marbles
= 28 u + 30 u
= 58 u
Total number of marbles
= 35 u + 35 u
= 70 u
Fraction of Riordan's marbles that were white marbles
=
5870 =
2935 Answer(s):
2935