Math (Practice Test-2)

1. At what rate of compound interest will an amount increase 6.25 times? 

  • 50% 
  • 150%
  • 120% 
  • 30%
Answer
150%

2. The areas of two circles differ by 100 cm² and their circumterence differ by 10 cm, what is the sum of their radi i ? 

  • 20 cm 
  • 20 π cm
  • 10√2 cm
  • 10 π cm
Answer
20 cm

3. Which of the following statement is false ? 

  • A ∩ Φ = A
  • A ∩ A = A
  • A ∩ Φ = Φ
  • A ∩ A = A
Answer
A ∩ Φ = Φ

4. One of the factors of the following is –

x² + 7x² + 14x + 8

  • x + 1
  • x – 1
  • x + 3
  • x – 5
Answer
x + 1

5. What is the range of the given date?

1, 13, 17, 16, 14, 25

  • 24
  • 26
  • 25
  • 27
Answer
26

6. What is the value of the following ? log 15²²⁵²⁵

  • 15 x 225
  • 240
  • 225
  • 450
Answer
450

7. The ratio of the volumes of a cube and sphere enclosed within is-

  • 6 : π
  • 3: yπ
  • 3 : π
  • None
Answer
6 : π

8. if 2 cos³θ + 5 sin²θ = 3, What is the value of tan ?

  •  2
  • 1/2
  • 3/8
  • 3/7
Answer
1/2

9. There are 100 students in a class 20 of them know only english and 50 of them know Hindi only 10 students know neither English non Hindi. How many students know both English and Hindi ?

  • 5
  • 10
  • 15
  • 20
Answer
20

10. The sum of two positive numbers is 5 and sum of their squares is 17, ther their products is –

  • 4
  • 8
  • 12
  • 22
Answer
4