A man multiplied a number by 8/5 instead of 5/8, what is the percentage error in the calculation?
156%
Calculation:
Let the number be 40 (LCM of 5 and 8).
The actual result should be ⇒ 40 × 5/8 = 25
But by mistake, the result obtained is ⇒ 40 × 8/5 = 64
Required percentage error ⇒ (64 − 25)/25 × 100 = (39/25) × 100 = 156%
∴ The correct option is 3.
Important Questions from Percentage
A number p increased by p% of 99 equals 99 increased by 99% of p. What is (p + 51)% of 928 + 72?
Amina saves 16% of her income. Now her income is increased by 20% but she still saves the same amount as before. What is the percentage increase in her expenditure?
What is 12% of 4% of 7% of 2 × 10 6 ?
Vignesh spends 42% of his monthly salary on food, 16% on house rent, 11% on entertainment and 7% on conveyance. But due to some family function, he has to borrow Rs. 12,000 from a money leader to meet the expenses of Rs. 18,000 What is his monthly salary?
If X is 12.25% more than Y. then Y is approximately_____ less than X.
