Math (Practice Test-3)

1.The mean of the four numbers is 6.5 if three of them are 4, 10 & 7 what is the fourth number?

  • 7
  • 5
  • 3
  • 2.5
Answer
5

2. if x² > 1, which of the following is true ?

  • x > 1
  • x < -1 or > 1
  • -1 < x < 1
  • x > 0
Answer
 x < -1 or > 1 

3. Which of the following has the greatest value ? 5/7, 3/4, 2/2, 4/5

  • 5/7
  • 2/2
  • 4/5
  • 3/4
Answer
 2/2

4. How many microsecond are there in 2 minutes ?

  • 2 × 10⁶
  • 2 × 10⁷
  • 1.2 × 10⁷
  • 1.2 × 10⁸
Answer
1.2 × 10⁸

5. Find the area of the square which is inscribed inside a circle of radius 16π.

  • 254
  • 256
  • 265
  • 245
Answer
256

6. The maximum value sinx + cosx is-

  • 2
  • √2
  • -√2
  • √3
Answer
2

7. A 60-liter mixture of water and milk contains the milk and the water in the ratio 2: 1. How many litres of water should be added to it so that the ratio becomes 1:2? 11.

  • 20
  • 40
  • 30
  • 60
Answer
60

8. With what rate of simple interest (annual) a sum becomes 4 times in 15 years?

  • 10%
  • 15%
  • 8%
  • 20%
Answer
20%

9. The difference of compound and simple to side interest of a sum for two years at 5% annual rate of interest of Rs. 2. Find the sum.

  • Rs. 400
  • Rs. 600
  • Rs. 800
  • Rs. 1000
Answer
Rs. 800

10. In a hotel, 8 people out of a spend three rupees each on food and the ninth people spend the two rupees more of the average expenditure of all. What is the total expenditure?

  • Rs. 27.50
  • Rs. 26.00
  • Rs. 40.00
  • Rs. 29.25
Answer
 Rs. 27.50

Leave a Comment

Your email address will not be published. Required fields are marked *