| 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
[su_spoiler title=”Answer” style=”fancy” icon=”caret”] 5 [/su_spoiler]
2. if x² > 1, which of the following is true ?
- x > 1
- x < -1 or > 1
- -1 < x < 1
- x > 0
[su_spoiler title=”Answer” style=”fancy” icon=”caret”] x < -1 or > 1 [/su_spoiler]
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
[su_spoiler title=”Answer” style=”fancy” icon=”caret”] 2/2 [/su_spoiler]
4. How many microsecond are there in 2 minutes ?
- 2 × 10⁶
- 2 × 10⁷
- 1.2 × 10⁷
- 1.2 × 10⁸
[su_spoiler title=”Answer” style=”fancy” icon=”caret”] 1.2 × 10⁸ [/su_spoiler]
5. Find the area of the square which is inscribed inside a circle of radius 16π.
- 254
- 256
- 265
- 245
[su_spoiler title=”Answer” style=”fancy” icon=”caret”] 256 [/su_spoiler]
6. The maximum value sinx + cosx is-
- 2
- √2
- -√2
- √3
[su_spoiler title=”Answer” style=”fancy” icon=”caret”] 2 [/su_spoiler]
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
[su_spoiler title=”Answer” style=”fancy” icon=”caret”] 60 [/su_spoiler]
8. With what rate of simple interest (annual) a sum becomes 4 times in 15 years?
- 10%
- 15%
- 8%
- 20%
[su_spoiler title=”Answer” style=”fancy” icon=”caret”] 20% [/su_spoiler]
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
[su_spoiler title=”Answer” style=”fancy” icon=”caret”] Rs. 800 [/su_spoiler]
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
[su_spoiler title=”Answer” style=”fancy” icon=”caret”] Rs. 27.50 [/su_spoiler]