General Test - ...

A car travels for the first 47 minutes with a speed of 90 km/h. It then travels for 47 minutes again with a speed of 80 km/h. Find the average speed of the car during the whole journey.

A train ran at a speed of $35$ km$/$hr in the first $10$ minutes and the speed of $20$ km$/$hr in the next $5$ minutes. What is the average speed of the train in $15$ minutes?

The ratio of the length of two trains \(X\) and \(Y\) is \(4: 7\) and the ratio of the time taken by both trains to cross a man standing on a platform is \(2: 3\). If the speed of the train \(X\) is \(36\) km/hr find the speed of the train \(Y\) in m/s:

In the question, two equations I and II are given. You have to solve both the equations to establish the correct relation between \(x\) and \(y\) and choose the correct option.

I. \(x^{2}+5 x-36=0\)

II. \(y^{2}+24 y+135=0\)

What is the largest of the following fraction?

\(\frac{2}{3}, \frac{3}{5}, \frac{8}{11}, \frac{7}{9}, \frac{11}{17}\)

The average of 25 results is 18. The average of first 12 of those is 14 and the average of last 12 is 17. What is the 13^th result?

Which of the following is an integer?

15 litres of a mixture contains alcohol and water in the ratio 1:4. If 3 litres of water is mixed in it, the percentage of alcohol in the new mixture will be-

In a single throw of two dice, find the probability of obtaining ‘a total of 8’.

The ratio between the largest angle and the smallest angle of a triangle is 2 ∶ 1. The second largest angle of a triangle is 33°. What will be the value of 50 percent of the largest angle of the triangle?