Question

Plss answer this question.
Both parts​

Answer 1

Answer:

Step-by-step explanation:

i) Half an hour =21​ hour

Hours in a day =24 hours

∴Percent=2×241​×100=1225​=2121​%

ii) 9/2 is 4.5 and 3/4 is 0.75

x% × 4.5 = 0.75

x% = 0.75 / 4.5

x% = 1/6

Answer 2

Answer:

1). One full day --- 24 hours

we have to find half hour percent in a day

thus, 1÷2÷24× 100 will give us the percentage of half hour by 24 hour.

=1÷2×1÷24×100

=25÷12%

therfore, 25÷12 percent of a day is half hour

2). we have to find how much percent is 3÷4 of 4 1÷2 meters

so let us first convert 4 1÷2 which is mixed fraction into improper fraction

that is 4 1÷2 = 4×2+1÷ 2

=9÷2

now we have to find how much percent is 3÷4 meter of 9÷2 meters

thus, 3÷4÷9÷2×100. = 3÷4×2÷9× 100

=1÷6× 100

=50÷3 % or 16.67%

Hope this was helpful :)