Quantitative Ab...

A boat goes 240 km along the stream in 12 hours while it goes 100 km in 10 hours against the stream. How much time the boat will take to cover 210 km distance in still water?

The New Delhi-Howrah Rajdhani Express leaves New Delhi at 16: 50 hours on 25^th November 2022 and reaches Howrah at 12: 05 hours on 26^th November 2022. If the average speed of the train is 80 km per hour, what is the distance between New Delhi and Howrah?

The ratio of the first and second class fares between two railway stations is 4 : 1 and that of the number of passengers traveling by first and second classes is 1 : 40. If on a day Rs. 1,100 are collected as to total fare, the amount collected from the first-class passengers is:

The average score of 84 students (boys and girls) in a test is 57. The ratio of the number of boys to that of girls is 10 ∶ 11. The average score of boys is 20% less than that of girls. What is the average score of girls in the test?

The present ages of A and B are in the ratio 15 : 8. After 8 years their ages will be in the ratio 17 : 10. What will be the ratio of the ages of A and B after 10 years from now?

If the mark price of an article is 800 and it is being sold at two consecutive discount of 20% and 10%. Then find the selling price of the article.

When 4/5th of 5/9th of any number is subtracted from the same number then remainder is 300. What is 5/6th of same number?

In what ratio must 2 varieties of coffee costing Rs. 330 and Rs. 440 per kg be mixed to get a mixture worth Rs. 363 per kg?

Select the number that can replace the question mark (?) in the following series.

25, 5, 49, 10, 81, 20, 121, ?