Respuesta :
1. let the required no. be x then according to question
(45/100)*x = 86
x = 86*(100/45)
x = 8600/45 = 191.1
as according to ur options (a) will lead to correct answer .
2. for calculating what percentage of 26 is 4 follow these steps
(4/26)*100 = 400/26 = 15.38%
as according to options u have given none is correct. :(
3. for calculating what percentage of 250 is 70 follow these steps
(70/250)*100= 700/25 = 28%
as according to ur options (c) is correct.
4. for calculating that what no. is 65% of 80 follow these steps
(65/100)*80= 520/10= 52
therefore (b) is correct.
5. for calculating 48 is 30% of what no. follow these steps
let the no. be x then according to question
(30/100)*x = 48
x = 48*(100/30)
x = 480/3
x = 120
now here I guess either ur options are wrong or u have misplaced the sign of percentage ...bcoz of ur question was 48 % of 30 is what no. then ur answer must be like (48/100)*30 = 144/10 = 14.4
which is option (a)......so either ur question is wrong or ur options are wrong ....I have explained both ways rest is urs work. ;)
hope it helped
(45/100)*x = 86
x = 86*(100/45)
x = 8600/45 = 191.1
as according to ur options (a) will lead to correct answer .
2. for calculating what percentage of 26 is 4 follow these steps
(4/26)*100 = 400/26 = 15.38%
as according to options u have given none is correct. :(
3. for calculating what percentage of 250 is 70 follow these steps
(70/250)*100= 700/25 = 28%
as according to ur options (c) is correct.
4. for calculating that what no. is 65% of 80 follow these steps
(65/100)*80= 520/10= 52
therefore (b) is correct.
5. for calculating 48 is 30% of what no. follow these steps
let the no. be x then according to question
(30/100)*x = 48
x = 48*(100/30)
x = 480/3
x = 120
now here I guess either ur options are wrong or u have misplaced the sign of percentage ...bcoz of ur question was 48 % of 30 is what no. then ur answer must be like (48/100)*30 = 144/10 = 14.4
which is option (a)......so either ur question is wrong or ur options are wrong ....I have explained both ways rest is urs work. ;)
hope it helped