.A change dispensing machine contains 1 rupee2 rupee and 5 rupee coins

1.	.A change dispensing machine contains 1 rupee2 rupee and 5 rupee coins. Initially, it is filled withequal number of coins of each denomination. WhenAashish took out all five rupee coins, the totalamount remaining changed to 105. Jaspal thentook out all one rupee coins. The total amount in thechange dispensing machine finally is(A) 70 (B) 75 (C) 60 (D) 280
Answer» let no of 1rs coin be Xlet no of 2rs coin be Y i.e=2X after removing all 5rs coin total is 105rs hence we have X+Y=105 thus 3X=105 thus X=35.. there fore no of 1rs & 2rs coins are 35..each after taking all 1rs coins... only 35__2rs coins are left.. hence total amount left is 2*35= 70 rs

.A change dispensing machine contains 1 rupee2 rupee and 5 rupee coins. Initially, it is filled withequal number of coins of each denomination. WhenAashish took out all five rupee coins, the totalamount remaining changed to 105. Jaspal thentook out all one rupee coins. The total amount in thechange dispensing machine finally is(A) 70 (B) 75 (C) 60 (D) 280

Answer»

let no of 1rs coin be Xlet no of 2rs coin be Y i.e=2X

after removing all 5rs coin total is 105rs

hence we have X+Y=105

thus 3X=105

thus X=35..

there fore no of 1rs & 2rs coins are 35..each

after taking all 1rs coins... only 35__2rs coins are left..

hence total amount left is 2*35= 70 rs