MATHEMATICS & COMPUTER SCIENCE
Choose the correct answers :
Ques 11: complete the serious 1/5,3/7,6/11,10/19……..
- 14/26
- 18/26
- 15/35
- none of these
15/35
Ques 12: 2sin A. Cos B = ?
- sin (A+B)+sin(A-B)
- sin (A+B)
- sin (A-B)
- none of these
sin (A+B)+sin(A-B)
Ques 13: Two trains running in opposite directions cross a man standing on a platform in 27 sec and 17 sec respectively and they cross each other in 23 second. What is the ratio of their speeds ?
- 3:2
- 1:5
- 2:3
- none of these
2:3
Ques 14: if √5 = 2. 24 find the value of (3√5)/(2√5-0.48)
- 0.168
- 1.68
- 16.8
- 168
1.68
Ques 15: Simple interest on RS. 500 for 4 years at 6.25% per annum is equal to the simple interest on RS. 400 at 5% per annum for a certain period of time. What is the period of time ?
- 6&1/4 years
- 5 years
- 4 years
- 8&2/3 years
6&1/4 years
Ques 16: A cylinder has diameter 14 cm and the area of its curved surface is 220 sq. cm…. the value of the cylinder is ……..
- 770 cm3
- 1000 cm3
- 1540 cm3
- 6622 cm3
770 cm3
Ques 17: Chache & Main Memory will loss their contents when the power is off be cause these are ……. In nature.
- Dynamic
- Static
- Volatile
- Faulty
Volatile
Ques 18: Which type of memory holds only the program and data that the CPU is presently processing ?
- Free
- Honest
- Liberal
- Frank
Liberal
Ques 19: An Excel spread sheet has the exetension ……..
- xls
- ppt
- accts
- exe
exe
Ques 20: Junk E-mail is also called……..
- spam
- spoof
- cookie Crumbus
- Sniffer script
spam