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- If (x−1x)=23–√(x−1x)=23, what is the value of (x3+1x3) (x3+1x3) , given that x is a positive number?
- ABC is an equilateral triangle with side 12 cm and AD is the median. Find the length of GD if G is the centroid of D ABC.
- Two friends received a bonus of ₹2,000 each in their bank accounts. They already have ₹47,000 and ₹54,000 in their respective bank accounts. The ratio of t...
- If √3 tan 2θ – 3 = 0, then find the value of tanθ secθ – sinθ where 0 < θ < 90°
- Three bells started tolling together. Each of them then tolls after 0.25 sec, 0.1 sec, and 0.125 sec. After how many seconds will they again toll together?
- The volume of a sphere is given by 130977 cm³ . Its surface area (in cm²) is:
- A group of people consists of men, women, and children. 20% of them are men, 40% are women and rest are children, and their average weights are 50 kg, 40 k...
- Present ratio of the ages of Babita and Sunita is 7:9. 5 years ago, this ratio was 1:2. Find the present age of Babita.
- The ratio of copper and zinc in brass is 25 : 12. How much amount of copper will be there in 370 kg of brass?
- The radius of a solid right circular cone is 65 cm and its height is 72 cm. The total surface area (in cm²) of the cone is (use π = 22/7):
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