Related InterviewSolutions

• IQ of a person is given by the formula `I Q =(M A)/(C A)xx100` where MA is mental age and CA is chronological age. If `80lt=I Qlt=140` for a group of 12 years old children, find the range of their mental age.
• The water acidity in a pool is considered normal when the average pH reading of three daily measurements is between ` 8.2 and 8.5` If the first two pH readings are `8.48 and 8.35`, then find the range of pH value for the third reading that will result in the acidity level being normal.
• Find the linear inequalities for which the shaded region in the given figure is the solution set.
• `4/(x-1)le3le6/(x+1)(xgt0)`
• `-5 le (2-3x)/4 le 9`
• A company manufactures cassettes. Its cost and revenue functions are C(x)=26000+30x and R(x)= 43x, respectively, where x is the number of cassettes produced and sold in a week. How many cassettes must be sold by the company to realise some profit ?
• The inequality representing the following graph is A. `x in (-infty,7/2)`B. `x in (-infty,7/2]`C. `x in [7/2, -infty)`D. `x in (7/2, infty)`
• The inequality representing the following graph is A. `|x| lt 5`B. `|x| le 5`C. ` |x| gt 5`D. `|x| ge 5`
• A solution is to be kept between `68oF`and `77oF`. What is the range in temperature in degree Celsius (C) if the Celsius / Fahrenheit (F) conversion formula is given by`F=9/5C+32 ?`
• Let x and b are real numbers. If ` b gt 0 and |x| gtb`, thenA. `x in (-b, infty)`B. ` x in [-infty, b)`C. `x in (-b, b)`D. `x in (- infty, -b) cup(b, infty)`