Question

in a piggy bank there are 1 and 2 coin the number of 1 rupees coin is 4 the number of 2 rupees coin .if the total money in the piggy back in rupee 900 find the number 1and 2 rupees coin​

Answer 1

let no. of two rupees coin=x

no. of one rupee coin=4x

according to the question

900=4x×1+x×2

900=4x+2x

900=6x

x=150

no. of two rupees coin=x=150

no. of one rupee coin=4x=4×150=600