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
Answers
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0
Answer:
no of coins of Rs 5 = 3x = 30 coins
Step-by-step explanation:
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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.
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