Question

The sum of rupees 800 is in the form of denomination of rupees 10 and rupees 20 if the total no of notes is 50 find the no of notes in each type and it's value also

Answer 1

Hi there !

here's your answer

Let the Rs 10 notes be x
Rs 20 notes = 50 - x


Value of :
Rs 10 notes = 10 × x = 10x Rs
Rs 20 notes = 20(50-x) = 1000 - 20x Rs


given,

10x + 1000 - 20x = 800

-10x = 800 - 1000

-10x = -200

cancelling the - sign , we have

10x = 200

$x = \frac{200}{10}$

x = 20

so,

Rs 10 notes = x = 20

Rs 20 notes = 50 - x = 50 - 20 = 30

Value of :

Rs 10 notes = 10x = 10 × 20 = Rs 200

Rs 20 notes = 1000 - 20x = 1000 - 20 × 20 = 600 Rs

Answer 2

The total number of rupees
600