Question

solve this fast
it's urgent

Answer 1

Given total number of coins = 50.

Let the number of 25 paisa coins be x.

Then the number of 50 paisa coins will be 50 - x.

Given total money = 19.50 rupees

= 1950 paisa.

Now,

= > 25x + 50(50 - x) = 1950

= > 25x + 2500 - 50x = 1950

= > -25x - 550 = 0

= > x + 22 = 0.

Therefore, the linear equation is x + 22 = 0.

Hope this helps!

Answer 2

Let the number of 25 paise coin be a

And number of 50 paise coin be b

Total amount = Rs 19.50 = 1950 paise

=> 25 × a + 50 × b = 1950

=> 25a + 50b = 1950

=> a + 2b = 78

Required equation :-

a + 2b = 78