1.Consider graphs of the two linear equations ax + by = c and bx - ay = c, where a, b and c are all not equal to zero, if both
- are parallel
- perpendicular
- intersect at one point
- none of the above
Answer(2)
2.Which of the following is the root mean square deviation of a set of values is the
- least about their mean
- maximum about their median
- minimum about their median
- minimum about their mode
Answer(1)
3.The probability that an electronic device produced by a company does not function properly is equal to 0.1. If 10 devices are bought, then the probability, to the nearest thousandth, that 7 devices function properly is
- 0.057
- 0.478
- 0.001
- 0.5
Answer(1)
4. Runge-kutta formula of second order is
- Taylor series formula
- Picard's formula
- Euler's modified formula
- None of the above
Answer(3)
5.If the ratio between the present ages of Pallavi and Surbhi is 6:7. If Surbhi is 4 years old than Pallavi, what will be the ratio of the ages of Pallavi and Surbhi after 4 years
- 7:9
- 3:5
- 5:8
- 7:8
Answer(4)
