Question

express the following ratios as percentage
à) 3:4
b) 13:5
c) 3.5:50
d) 1:5 :2.5​

Answer 1

Answer:

a) 75%    

b) 260%

c) 7%

d) 60%

Step-by-step explanation:

a) 3:4 can be written as 3/4 and to find percentage we multiply it by 100% so when we multiply [ 3/4 x 100% ] 4 and 100 gets canceled and in place of 4 we get 1 and in place of 100 we get 25 so when we solve 3x25 we get 75% which is the answer to the question which you asked

the same is with every other question too .. just the thing is that the values differ .. so the way remains same .. {only calculation is done here}

b) 13/5 x 100% ..  100 gets cancelled by 5 and becomes 20 then 13x20= 260%

c) 3.5/50 'x 100% .. here when we remove decimal from the numerator .. 10 is multiplied to the denominator and it becomes 35/500 x 100 .. here the two 0's get cancelled and then 35 is cancelled by 5 and becomes 7 so the answer becomes 7%

d) 1.5/2.5 x 100% .. here as the number of decimal places after the decimal are the same , therefore it easily gets removed .. so the question becomes .. 15/25 x 100% .. when we cancel 100 by 25 , we get 4 and 15x4 = 60%

Hence, the answer becomes 60%

I hope I was able to clear your doubt ..

It was a pleasure helping you

Thank you ..!!