Question

Rita and Arti are two friends and they are saving the pocket money in a piggy bank. Rita saved a total of Rs300 in coins of denomination Re 1, Rs 2 and Rs 5. The number of Rs2coins is 3 times the number of Rs5 coins in his piggy bank. He counted that there are 160 coins in her piggy bank. Arti also saved Rs360 as coins of denomination of Rs 2, Rs 5 and Rs 10 and the number of coins of Rs 2, Rs5 and RS 10 are in the ratio 5 : 2 : 1 in her piggy bank.  Your answer How many Rs 5 coins in Rita's piggy bank ​

Answer 1

Step-by-step explanation:

Let number of Rs5 coins be x

Number of Rs 2 coins =3× Number of 5 Rs coins =3x

Number of Re1 coins =160−(x+3x)

=160−4x

Amount of Rs5 coins =5×x=5x

Amount of Rs2 coins =2×3x=Rs6x

Amount of Re1 coins =(160−4×x)

=160−4x

As per the question, Total amount =Rs300

160−4x+5x+6x=300

7x=300−160

x=

7

140

x=20

Number of Re 1 coins =160−4x

=160−4×20

=80

Number of Rs2 coins =3x=3×20=60

Number of Rs5 coins =x=20