Question
If the points P(–2, 1), Q (α, β) and R (4, –1) are collinear and α – β = – 3 then the value of (α + β) is:
Solve for (α + β) We now have: α - β = -3 α + 3β = 3 Adding both: 2α + 2β = –2 α + β = –1More Previous year papers Questions
- A sector of a circle has a central angle of 45° and an arc length of 22 cm. Find the radius of the circle. (Use π = 22/7.)
- Anil sells two pens at the rate of ₹1500 per pen. He earns a profit of 25 percent on one pen and loses 25 percent on the other pen. What will be the total...
- Find the curved surface area of a cone (in cm²) whose base diameter is 30 cm, and the height is 20 cm. (π = 3.14)
- Evaluate the following: 5 – [96 ÷ 4 of 3 – (16 – 55 ÷ 5)]
- Question 5
- Sapna finishes a job in 12 hours working alone. If Sapna and Riya finish the same job in 8 hours working together at their respective constant rates, then,...
- If the number of people during M2 and M5 had, respectively. been 50% less and 50% more than what has been presented in the pie chart, then what would be th...
- The length, breadth and height of a cuboid are 15 cm, 12 cm and 11 cm respectively. The length is decreased by 6(2/3)%, the breadth increased by 8(1/3)%, w...
- The ratio of two numbers is 4 : 3. If both numbers are increased by 4, then the ratio becomes 5 : 4. What is the sum of two numbers?
- If 50L of liquid containing 20% spirit is added with 10L of water then what would be the percentage of spirit in the resulting mixture?
Relevant for Exams:
Hey! Ask a query
Please enter email id
The email must be a valid email address.
Please enter Mobile Number
Please enter valid Mobile Number
Please enter your Doubt
