Two trains of lengths 100 m and 140 m respectively are running in opposite directions on parallel tracks. If their speed is 29 km/hour and 43 km/hour respectively. In what time will they cross each other?

The average score of top 6 batsmen of Indian cricket team in a match is 46. If the 7th batsman is included, the average becomes 50. If the 8 batsman comes and scores 34 runs, then find the ratio of the average scores of top 6 and top 8 batsmen.

Kamal saves x% of her monthly income. When her monthly expenditure is increased by 20% and the monthly income is increased by 26%, then her monthly savings increased by 60%. What is the value of x?

Reshmi and Rahul invested Rs. 6000 and Rs. 8000 in a business for 6 months and 8 months respectively. Rahul being an working partner earned 23/4% profit out of a total profit of Rs. 36000 and after this the rest of the profit was divided according to their investments. What is Rahul's profit amount?

Ramiya got married 8 years ago. Her present age is 6/5 times her age at the time of her marriage. Ramiya’s brother was 10 years younger than her at the time of her marriage. What is the ratio of Ramiya’s present age and her brother’s age at the time of her marriage?

The landforms that are created by massive earth movements due to plate tectonics are called

A and B started a business in partnership. The ratio between the investments of A and B was 5: 4. If A invested for 12 months and at the end of the year the ratio of prot was 15: 8, then for how much time B invested?

Direction: Study the following information carefully and answer the questions given below.
 25% of the boys and 60% of the girls from a college participated in an event. The total number of girls in the college is equal to the number of boys, who do not participate in the event.

If the difference the number of boys and girls, who participated in the event is 40, then the total number of boys and girls in the college is