Question

Each dimension of a larger rectangular field is 4.5 times greater than a smaller rectangular field. If it costs $176 to seed the smaller field, how much would it cost to seed the larger field with the same type of seeds?

Answer 1

Smaller field length=l
Smaller field breadth=b
Area of smaller field=lb sq m
Longer field length=4.5l
Longer field breadth=4.5b
Longer field area=20.25lb sq m
Cost to sow seed in lb sq m(smaller field)=176
Cost to sow seed in 1 sq m=176/lb
Cost to sow seed in 20.25lb(larger field)=20.25 lb x 176/lb=3564 $

Answer 2

whoa ! how did ou come up with that ?

Answer 3

You see..just break your question into parts and nail them..:)
First forget about the larger field..
Objective 1: Mission Briefing: Dimensions of smaller field and its area
Objective 2: Mission Briefing: Dimensions of larger field(its said that each side is 4.5 times the side of the smaller field which means tha tthe length of larger field will be 4.5 times the length of smaller field..similarly breadth of the larger field will be 4.5 times the breadth of the smaller field)...now find the area of larger field.
Objective 3: Unitary Method..:)
for smaller field area it costs..176
for 1 sq m it costs 176/smaller field area
for larger field area it costs larger field area x 176/smaller field area.
Mission accomplished..:) Rendevous

Answer 4

thank you

Answer 5

No problem..:)
Just keep calm and nail them..:)