Question

Question No. 1
A, B, C and D are four shares listed on NASDAQ exchange in New York. On Monday, the prices of the four shares were x, 1.5x, 2x and 1.5x respectively in dollars). On
Tuesday, A and D rose by 2y dollars while B and C dropped by y dollars, as a result of which the average price of the four shares increased by 20 dollars on Tuesday.
What is the value of 'y'?
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Answer 1

Answer:

this is difficult

Step-by-step explanation:

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