Question
'X' scored 236 marks in Maths and failed by 64 marks as
passing percentage is 40%. How many marks he needs to score to get 70% marks in Maths?Solution
ATQ, Let the maximum marks of Maths be 'm'. According to question, m × 40% = (236 + 64) m × 40% = 300 m = (5/2) × 300 m = 750 Therefore, required marks = 0.7 × 750 = 525 marks
If x + y + z = 6, and x3 + y3 + z3 = 36, xyz = 6 then find (xy +yz + zx)?
Solve: 5 – 3x > 2x + 10
If √b + (1/√b) = 11, then find the value of b + (1/b).
- If [x + (1/x)] = 7, find the value of [x⁴ + (1/x⁴)].
The curved surface area of a cylinder is 462 cm² and its base area is 346.5 cm². What is the volume (in cm³) of the cylinder? (Use π =...
If
= -2 then find A shopkeeper marked his article 25% above its cost price and offered a discount of 30%. If cost price of the article is Rs. 560, then find profit or los...
Calculate the value of the expression: {2 X (P3 - Q3) - 30 X P X Q} if (P - Q) = 6 and (P2 + Q2) = 80
= ?