Question
Jiya, Kavya, Shivam, and Mani start walking from the
same point in the same direction around a rectangular track and each one of them completes one round in 180 seconds, 270 seconds, 360 seconds, and 450 seconds respectively. After how much time will they all meet again at one point?Solution
Jiya Kavya, Shivam, And Mani=180,270,360,450second LCM of 180,270,360,450second=5400sec Meeting point =5400/60min =90min=1 hours 30 minutes
Simplify:
6x + 8y - [(12x + 6y) - (4x + 3y) + 2y] - 4xIf 9x2 + 16y2 = 24xy, then find the ratio of ‘x’ and ‘y’, respectively.
- Suppose [a + (1/16a)] = 3, then the value of [16a³ + (1/256a³)] is:
If, 6x + y = 20, and 2xy = 32, and 6x > y, then find the value of 216x³ – y³.
If x + 1/x = 2, find x⁷ + 1/x⁷.
(x – 6) 2 + (y + 2) 2 + (z – 4) 2 = 0, then find the value of 4x - 3y + z.
Three cubes of metal whose edges are 3cm, 4cm and 5cm. respectively are melted and a single cube is formed. What is the length of the edge of the newly ...
A number is increased by 20%, and the resulting number is decreased by 20%. If the initial number is ₹x, the final number is ₹2880. What is the valu...