Quantitative Ap...

A takes 2 hours more than B to cover a distance of 40 km. If A doubles his speed, he takes  hours more than B to cover 80 km. To cover a distance of 90 km, how much time will B take travelling at his same speed?

The LCM of the prime numbers between 1 to 12 is____.

If 16 sec²⁡ θ − 40sec⁡ θ + 25 = 0 and θ is an acute angle, then what will be the value of tanθ?

If the number “741259 AB” is divisible by 40, then for the least value of A, the value of 5A + 3B is:

Several litres of milk was drawn off a 27 litre container full of milk which was replaced by an equal amount of water. The same volume of the mixture was drawn off again and replaced with water. Finally, the container contained 12 litres of milk. How much milk was initially drawn?

A rectangular plot is 122 m long and 88 m wide. It has a path 2 m wide all around it on the outside. Find the cost of constructing it at Rs. 2 per square meter.

The length of the base of a triangle is 5/7 of the base of a parallelogram. The area of the triangle and the parallelogram is the same. Find the ratio of the respective heights of the triangle and the parallelogram.

The mean of 8 observations is 25. The 7 observations are 30, 24, 27, 22, 18, 26, 32. What is the 8th observation?

Internal bisector of ∠XYZ and ∠XZY of △XYZ meet each other at k. If ∠YKZ = 125^∘, then ∠YXZ is equal to: