RRB
Government Jobs Exams
Numerical Ability
Averages
A bag contains three types of coins i.e. one rupee coins, 50 paisa coins and 25 paisa coins totalling 175 coins. If the total value of the coins of each kind be the same, the total amount in the bag is
Read Solution (Total 3)
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- a/q all type coins same in number
so x+x/2+x/4=175
x=25
total coins 3x= 75
- 9 years agoHelpfull: Yes(3) No(0)
- let x one rupee coins, y 50 paise coins, z 25 paise coins be there in that bag
100x=50y=25z from this 2y=z, 2x=y, 4x=z
total 175 coins they gave
x+y+z=175
x+2x+4x=175
x=25
we have 25 1 rupee coins
total amount in bag= 25(1)*3=75 rupees
- 9 years agoHelpfull: Yes(0) No(0)
- Lets say coin of 1, .5, and . 25 is x,y,z
So the value of coin of rs 1 is 100*x
value of coin .50 is 50*y
for .25 is 25*z
100x=50y=25z
so y=2x
z=4x
and x+y+z=175
SO x+2x+4x=175
so x=25
y=50
z=100
total amount is 100*25+50*50+ 25*100=7500 paise
means 75 rs
- 9 years agoHelpfull: Yes(0) No(0)
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