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A driver's income consists of his salary and tips. during one week his tips were 5/4 of his salary. what fraction of his income came from tips?
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- 4/9
- 5/9
- 5/8
- 5/4
Correct Option: B
Let us assume the salary of driver be ₹ R
Then Tips of week = R x 5/4
According to question,
his income during one week = Salary + Tips
⇒ Total Income during one week = R + (5R/4)
⇒ Total Income during one week = (4R + 5R)/4 = 9R/4
Required Fraction = Tips in a week/Total Income in a week
⇒ Required Fraction = 5R/4 / 9R/4
⇒ Required Fraction = 5R/4 x 4/9R
⇒ Required Fraction = 5/9
