Sweety went to buy eleven chocolates worth Rs. x. She gave Rs.100 rupee note to the shopkeeper to bu

M4maths Previous Puzzles

20 Dec 2018 Cost Price

Sweety went to buy eleven chocolates worth Rs. x. She gave Rs.100 rupee note to the shopkeeper to buy the chocolates then shopkeeper gave rest of the money in the denominations of 50 paise, 2 rupee, and 5 rupees. If the ratio of the number of coins is 7:6:7 respectively. Then what is the price of eight chocolates?

OPtion

1) 4.5
2) 49,5
3) 51.5
4) 5.5
5) 45
6) 38
7) 40.5
8) 36
9) 35
10) None of these

Solution

Possible coins = (7, 6, 7) & (14, 12, 14)
If (7, 6, 7) = 0.50*7+ 2*6 + 5*7 = 50.5

Chocolate cost = 100 - 50.5 = 49.5

Case 2: (14, 12, 14) = 0.50*14+ 2*12 + 5*14 = 101 which is more than 100 rupees so wrong

So cost of 11 chocolates = Rs 49.5

Cost of 8 Chocolates = (49.5/11)*8 = Rs 36

Option 8)

Correct Option: 8 Best Solution (8)

G.S.Kantharao   6 years AGO

Ratio =7:6:7
Amount=₹7/2:₹12:₹35
Total=₹50.50
Cost of 11=₹49.50
Cost of each =₹4.50
Cost of 8 =₹36.
Right option is 8👈

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SAYAN CHATTERJEE   6 years AGO

(100-7m/2-6m*2+7m*2)= 11c
100-101.5m/2= 11c
Now, possible value of m is 1
So, 11c= 49.5
c= 4.5
So, price of 8 chocolates is 8*4.5= 36
Option 8.

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AASHRAY AJAY SHARMA   6 years AGO

The rest of the money in the denominations of 50 paise, 2 rupee, and 5 rupees as per the ratio given is,

(0.5)*7 + (2*6) + (5*7) = 20*y-->y being the remaining amount

we get y=2.53 & remaining amount is Rs.50.5
Cost of 11 chocoloates is 100-50.5 = 49.5
Cost of 8 chocolates is (49.5*8)/11 = 36 (Option 8)

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RAMADURAI NATESAN   6 years AGO

The ratio of 7:6:7 for 5ops, 2 Rs and 5 Rs gives a total of 50.5 Rs .The next set will give Rs 101 which is not possible.Hence cost of one is Rs 4.5.Cost of 8 is Rs 36

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Kariamal   6 years AGO

Eleven chocolates price=49.5
So eight chocolate price=36

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PENUMALLU SANDHYA ANUSHA   6 years AGO

3.50+12+35=50.50
100-50.50=49.50
49.50/11=4.5
4.5*8=36

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srikanth yadav saginala   6 years AGO

Change given by shopkeeper = 7(0.5)+6(2)+7(5) = 50.5

So, cost of 11 choc = 49.5/11 = 4.5

Therefore, cost of 8 choc = 8(4.5) = 36

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Mohan Vasudev   6 years AGO

Money returned in the ratio 7:6:7
Least money return = 7 * .5 + 2 8 6 + 7 *5 = 50.50.
Then 100 - x = 50.50
Therefore cost of 11 Chocolates = x = 49.5
Cost of 1 chocolate = 4.5
Cost of 8 chocolates = 36

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