Question

Alice's grandfather is showing Alice his apple

orchard. He tells Alice that when they planted
the orchard many years before that for every 11
rows of Red Delicious, they planted 7 rows of
Yellow Delicious, 5 rows of Braeburn and 3
rows of Royal Gala. If there are 18 rows of
Royal Gala in the orchard, how many rows of
trees are there altogether?

Answer 1

There are 156 rows of trees altogether.

Explanation:

Given that for every 11 rows of Red delicious , they plant 3 rows of Royal Gala.

Thus for 1 row of Royal Gala there would be 11/3 rows of Red delicious.

Number of rows of Royal Gala=18

`corresponding\ number\ of\ Red\ delicious\ = 11/3 * 18=11* 6=66`

For 11 rows of red delicious,they plant 7 rows of yellow delicious.

Thus for 1 row of Red delicious,there would be 7/11 rows of yellow delicious.

For 66 rows of red delicious there would be

`7/11*66=7* 6=42 rows\ of\ yellow\ delicious`

For 11 rows of red delicious,they plant 5 rows of Braeburn

for 1 row of red delicious,they would plant 5/11 rows of Braeburn.

For 11 rows of red delicious,they would plant

`5/11* 66=5* 6=30\ rows\ of\ braeburn`

Total rows of trees=66+42+30+18=156