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Question

One kg of tea and one kg of sugar together cost Rs 190 If the price of tea falls by 10% and that of sugar by rises by 20% then the price of one kg of each combined comes Rs 180 The original price of tea in Rs per kg is

A
Rs 72
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B
Rs 144
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C
Rs 55
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D
Rs 160
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Solution

The correct option is D Rs 160
Let original price of one kg of tea =x Rs

Then, Original price of one kg of sugar =190x Rs

Price of tea falls by 10%

So, New price of tea =x10% of x=9x10

Price of sugar rises by 20%

So, New price of sugar =(190x)+20% of (190x)

=190x+38x5

=2286x5

According to question, Sum of new prices = 180 Rs

9x10+2286x5=180

2283x10=180

3x10=48

x=160

Hence, Original price of tea =x=160 Rs per kg

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