Identify the correct mathematical statements: A. A batsman makes a score of 87…

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Identify the correct mathematical statements:

A. A batsman makes a score of 87 runs in the 17th inning and thus increases his average by 3. Then his average after 17th inning is 36.

B. The value of a number subtracted from Numerator and Denominator of the fraction 6/7 to get a fraction equal to 3/4 is 3.

C. If 15% of 40 is greater than 25% of a number by 2, then the number is 16.

D. The value of (1+1/2) (1+1/3) (1+1/4)................(1+1/120) is 60.5

Choose the correct answer from the options given below:

  1. B, C and D Only

  2. B and C Only

  3. C and D Only

  4. A and B Only

  1. A.

    1

  2. B.

    2

  3. C.

    3

  4. D.

    4

Attempted by 10 students.

Show answer & explanation

Correct answer: A

Analyze each statement to determine correctness.

A: Let initial average be x. (16x + 87)/17 = x + 3 implies x = 36. Final average is 39, not 36. False.

B: (6-x)/(7-x) = 3/4 implies x = 3. True.

C: 15% of 40 = 6. 6 - 25% of y = 2 implies y = 16. True.

D: Product telescopes to 121/2 = 60.5. True.

Correct statements are B, C, and D.

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