Question
When was the India–EU Ideathon on “Combating Marine
Plastic Litter” launched?Solution
The India–EU Ideathon focused on Combating Marine Plastic Litter was launched on 25 September 2025. Date specificity matters for tracking program timelines, submission deadlines, and follow-on activities such as prototype development and pilot projects. An ideathon with India–EU participation signals cross-regional collaboration, defines challenge statements (tracking plastics, removal technologies, community mobilisation), and creates structured opportunity windows for innovators to submit solutions.
Find the number of zeroes in 28 Ă— 45 Ă— 80 Ă— 25.
 + (x – 6) 2 + (y + 2) 2 + (z – 4) 2 = 0, then find the value of 4x - 3y + z.
If [2a + (1/2a)] = 5, then find the value of [4a² + (1/4a²) - 6]
If p = 32 - q - r and pq + r(q + p) = 255, then find the value of (p² + q² + r²).
A man running at the speed of 6 kmph was over taken by the train moving with the speed of 78 kmph in 20 seconds. Find the length of train.
Solve: 1/x + 1/y = 5/2 and 1/x – 1/y = 1/6
If (a2 + 1/a2) = 38, then find the value of (a3 - 1/a3).
ABCD is a cyclic quadrilateral in which AB =16.5 cm. BC = x cm. CD= 11 cm. AD 19.8 cm, and BD is bisected by AC at O. What is the value of x?
- If 4x + y = 18 and xy = - 10, what is the value of 4x - y?
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