Question

In a bag there are coins of ₹ 2, ₹ 1 and ₹ 5 in the ratio of 1:2:3. If there is ₹ 190 in all,
then what is the number of ₹ 5 coins ?


please answer with explanation
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Answer 1

Answer:

no of coins of Rs 5 = 3x = 30 coins

Step-by-step explanation:

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do it on your own

Answer 2

Given - Ratio of coins

Find - Number of Rs. 5 coins

Solution - Let the number of Rs. 2, Re. 1 and Rs. 5 coins be 1x, 2x and 3x respectively. Forming mathematical equation -

2*1x + 1*2x + 5*3x = 190

Performing multiplication on Left Hand Side

2x + 2x + 15x = 90

Performing addition on Left Hand Side

19x = 190

Shifting 19 to Right Hand Side and performing division

x = 190/19

x = 10

So, the number of Rs. 5 coins = 3x

Number of Rs. 5 coins = 3*10

Performing multiplication

Number of Rs. 5 coins = 30

Hence, there 30 Rs. 5 coins.