Math, asked by premikhalkho17, 11 months ago

A student spends 30% of hos money amd has rs. 21 left. Find his money

Answers

Answered by snehadubey529
6

Let the amount of his money be x

30% of X = 21

30/100 X x = 21

30x/100= 21

x = 21 X 100 / 30

x = 7 X 10

x = 70

His money is rs. 70

Answered by fatimahzohra6
2

Answer:

The student's money is rs. 30.

Step-by-step explanation:

A student spends 30% of his money.

Let the money of the student is 100%.

If he spends 30% of his money, then he has left money = 100% - 30% = 70%

The student has left money = rs 21

According to question,

70% of the students money is left which value is rs. 21.

Then, we can say that

70% of the student money is equal to rs.21.

or,

70\% \:  = 21

or,

1\% \:  =  \frac{21}{70}

or,

100\% \:  =  \frac{21}{70}  \times 100

or,

100\% =  \frac{2100}{70}

or,

100\% \:  = 30

The student's money is rs 30.

He spends money=

30\% \: of \: rs \: 30

=

 = \frac{30}{100}  \times 30

 =  \frac{900}{100}

 = rs \: 9

Conclusion:

The student's total money is rs. 30 and he spends rs. 9.

Similar questions