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An employee works in a company on a contract of 30 days on the condition that he will receive Rs. 120 for each day he works and he will be fined Rs. 10 for each day he is absent - Mathematics

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Question

An employee works in a company on a contract of 30 days on the condition that he will receive Rs. 120 for each day he works and he will be fined Rs. 10 for each day he is absent. If he receives Rs. 2300 in all, for how many days did he remain absent?

Sum

Solution

Given, total number of days in contract = 30

Money received per day for working = ₹ 120

Money deducted per day for being absent = ₹ 10

And amount received by employee as salary = ₹ 2300

Let the employee remained absent for x days.

Then, employee worked for (30 – x) days.

According to the question,

120(30 – x) – 10x = 2300

⇒ 3600 – 120x – 10x = 2300

⇒ – 130x = – 3600 + 2300

⇒ – 130x = – 1300

⇒ x = `-1300 xx ((-1)/130)`

∴ x = 10

Therefore, employee remained absent for 10 days.

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Chapter 4: Linear Equation In One Variable - Exercise [Page 120]

APPEARS IN

NCERT Exemplar Mathematics [English] Class 8
Chapter 4 Linear Equation In One Variable
Exercise | Q 105. | Page 120
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