Question

Raju has 210 rs in the form of coins.20% of the coins in rs 5 and 25% in rs 10 and 15% in rs 2 and the remaining ones rs 1 in denominations find rs 1 coins

Answer 1

answer is 20 ( no. of 1 rupee coin)

Answer 2

The number of rs 1 coins is 20.

Step-by-step explanation:

Let x be the total number of coins.

20% of the coins in rs 5 and 25% in rs 10 and 15% in rs 2 and the remaining ones rs 1 in denominations.

Coin of Rs. 5 = 20% of x = 0.20x

Coin of Rs. 10 = 25% of x = 0.25x

Coin of Rs. 2 = 15% of x = 0.15x

Coin of Rs. 1 = Total coins - Coin of Rs. 5 -Coin of Rs. 10 - Coin of Rs. 2

                    = $x-0.20x-0.25x-0.15x$

                    = $0.40x$

Total money = Sum of ( Value of coin × Number of coins )

$210=5(0.20x)+10(0.25x)+2(0.15x)+1(0.40x)$

$210=4.2x$

Divide both sides by 4.2.

$\frac{210}{4.2}=x$

$50=x$

The value of x is 50.

Coin of Rs. 1 is

$0.40x=0.40(50)=20$

Therefore, the number of rs 1 coins is 20.

#Learn more

A bag contains rs. 210 in the form of one­rupee coins, 50 paise coins and 25 paise coins in the ratio 3 : 5 : 6. thenumber of 25 paise coins in the bag is

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