Edition 1

1. A milk seller has certain amount of milk to sell. In what ratio he should mix water to gain 10% by selling the mixture at the same cost price?

  • (A) 1:10
  • (B) 1:15
  • (C) 1:20
  • (D) 1:5
  • (E) 1:12

2. Given that cos x + cos y + cos z + cos w = 4. Which of the following can be the value of sin2 x + sin3 y + sin4 z + sin5 w?

  • (A) 0
  • (B) 1
  • (C) 3
  • (D) −1
  • (E) 4

3. Let A, B and C be distinct positive integers such that the A × B × C = 2001. What is the largest possible value of the sum A + B + C?

  • (A) 23
  • (B) 55
  • (C) 99
  • (D) 111
  • (E) 671

1 comment

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