Question
In which of the following expressions will the
expression ‘L ≥ M ' and ‘P < N’ be definitely true ? Directions (Q.16 - 20): Read each of the following statements carefully and answer the questions.Solution
The correct answer is A
The average of three numbers a, b and c is 2 more than c. The average of a and b is 48. If d is 10 less than c, then the average of c and d is:
If (5x - 2y) = 170 and 4x:3y = 32:9, then find the value of (3x² + y²).
If y + 1/y = 2 then find y117 + 1/(y117)
- If (r + s) = 7 and rs = 15, then find the value of (r² + s²).
If a = 7.250, b = 3.258 and c = 3.992 then value of a3-b3-c3-3abc is.
If (a + b)2 = 18 + c2, (b + c)2 = 22 + a2 and (c + a)2 = 24 + b2, then find the va...
If x = 19 , find x 5 - 20 x 4 + 20 x 3 - 20x 2 + 20x - 20 = ?
If 10% of 24% of x is 240, then x = ?

If a + b + c = 8, a² + b² + c² = 18 and ab + b c+ ca = 12, then what is the value of a³ + b³ +c³ –3abc?