21. Simplify the given expression.

  • (A) 25
  • (B) 35
  • (C) 20
  • (D) 15

22. Find the value of [16 ÷ 2 - 7 × 15 ÷ 3 + {(1 + 4) × 5} + 4 × 3 - 10].

  • (A) 0
  • (B) 4
  • (C) −2
  • (D) 2

23. Simplify 250 + [100 - {50 - (30 + 15)}].

  • (A) 280
  • (B) 255
  • (C) 345
  • (D) 360

24. In an election, 95% of the total voters cast their votes. In this election, there were only two candidates A and B. The winner A, by obtaining 75% of the total votes, defeated his contestant B by 5500 votes. Find the total number of voters in the election.

  • (A) 11,000
  • (B) 10,000
  • (C) 13,000
  • (D) 12,000 Section : Quantitative Aptitude

25. A shopkeeper offers a 10% discount on dairy products and still manages to make a 20% profit. What is the actual cost (in ₹) to the shopkeeper of a dairy product marked ₹420?

  • (A) 315
  • (B) 340
  • (C) 350
  • (D) 325

26. The area of a triangle is 486 cm2 and its sides are in the ratio 3:4:5. The perimeter of the triangle is:

  • (A) 105 cm
  • (B) 218 cm
  • (C) 108 cm
  • (D) 308 cm

27. The total percentage change in the volume of a cuboid if its length and breadth are decreased by 15% and 25%, respectively, while its height is increased by 60% is:

  • (A) 5% decrease
  • (B) 2% decrease
  • (C) 5% increase
  • (D) 2% increase

28. A hostel had food provision for 300 students for a month. After 20 days, 50 students left the hostel. How long would the remaining food last? (1 month = 30 days)

  • (A) 10 days
  • (B) 14 days
  • (C) 12 days
  • (D) 16 days

29. A 234 m long train passes a person running at 9 km/h in the opposite direction, in 6 seconds. In how much time (in seconds) will it pass another person who is moving at 23.4 km/h, in the same direction?

  • (A) 8
  • (B) 7.8
  • (C) 7.2
  • (D) 8.4

30. The speed of a boat when travelling downstream is 33 km/h, whereas when travelling upstream it is 27 km/h. What is the speed of the boat in still water?

  • (A) 6 km/h
  • (B) 60 km/h
  • (C) 12 km/h
  • (D) 30 km/h

Total Quizz:- 2541

Mathematics

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