A student erroneously multiplied a number by 2-5 instead of 5-2-What is the percentage error in the calculation-

Question

Toppr Admin · Accepted Answer

Let the number be 100- 25 of 100 is 40 while52of 100 is 250-Now the difference is 210 on a base of 250- Therefore- percentage difference is 210250into 100-84-

A student erroneously multiplied a number by 2/5 instead of 5/2.What is the percentage error in the calculation?

Let the number be 100. $\frac{2}{5}$ of 100 is 40 while $\frac{5}{2}$ of 100 is 250.
Now the difference is 210 on a base of 250. Therefore, percentage difference is $\frac{210}{250}$ into $100 = 84 %$ .

A student erroneously multiplied a number by 2/5 instead of 5/2.What is the percentage error in the calculation?

Let the number be 100. 25 of 100 is 40 while52of 100 is 250.Now the difference is 210 on a base of 250. Therefore, percentage difference is 210250into 100=84%.

Let the number be 100. $\frac{2}{5}$ of 100 is 40 while $\frac{5}{2}$ of 100 is 250.
Now the difference is 210 on a base of 250. Therefore, percentage difference is $\frac{210}{250}$ into $100 = 84 %$ .