Question

I want the Answer of Q 29 with explaination

Answer 1

Answer:

let x be the number of 20 paise coins

then there are 2x number of 25 paise coins

given that

no of 25 paise coins is half of that of 50 paise coins if

no of 25 paise coins is 2x then number of 50 paise coins is 4x now we got all data that

no of 20 paise coins is x

no of 25 paise coins is 2x

no of 50 paise coins is 4x

and given that the sum of these is 17 rupees

=> (20)x + (25)2x + (50)4x = 17 rupees = 1700

=> 20x + 50x + 100x = 1700

=> 170x = 1700

=> x = 10

therefore there are x = 10 - 20 paise coins

2x = 20- 25 paise coins

and 4x= 40 - 50 paise coins