Question

Vivek gets 100rs per day if he works ,but he is fined by 10rs per day if he is absebt. In the whole month of April he received 1900rs only .how many days did he work?

Answer 1

Number of days in April =30
Number of days Vivek works=x
No of days Vivek is absent =(30-x)
Amt. he earns per day=100
Amy.he is fined for absenteeism =10
So,
1900=(100x) + {-10(30 - x)}
1900=100x+10x-300
1900=110x-300
1900+300=110x
2200=110x
2200/110 =x
20=x
Vivek works 20 days in April




I hope this helps.

Answer 2

rupees earned in one day= ₹100
rupees earned in 30 days= 100×30
=₹3000
Rupees gained=₹1900
Rupees lost =3000-1900=1100
Fine for 1 day. = 10
lost in 1 day. =100(for he didn't go to office and didn't earn ₹100)
Total lost. =10+100
=₹110
No of days he was absent=
rupees lost in 1 month/rupees lost per day
=1100/110
=10
So, he worked for (30-10) = 20 days

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