Question
Solution
First time, 5 bells will toll together on = LCM (2,6,10,18 & 24sec) = 360 sec = 6 min
In 36 minutes , they will toll together = 36 /6 = 6 times
But it is also given that they commence tolling together at starting time so answer is 6 + 1 = 7.
If x – 1/x = 9, then x3 – 1/x3 is:
- If x 2 Â = 4x - 4, then find the value of [x 3Â + (x 4 /8) ][3 - x 3 ].
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- 42.5% of 20% of 960 = x + 18.4, then find the sum of the squares of each digit in 'x'.
In an orchard, the ratio of the number of mango and lichi trees is 9:10, respectively. Also, there are few apple trees in the orchard which is 50% more ...
- If {x + (1/x)} = 8, then find the value of {x 4 Â + (1/x 4 )}.
If x ,y,z are three integers such that x +y = 8,y +z =13 and z +x =17,then the value of x2 /yz  is:
A man covered 40 km by bus and rest 25 km on foot. If the speed of the bus is 150% more than that of the man and the whole distance is covered in 2 hour...
If a =-10, b= -6 and c=18, then what is the value of (3abc)/4.
Find the value of ‘x’ in the given expression
(49/16)x × (64/343)x-1 = 4/7
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