Two cars A and B travel from one city to another, at speeds of 72 km/hr and 90 km/hr respectively. If car B takes 1 hour lesser than car A for the journey, then what is the distance (in km) between the two cities?
Excluding stoppages, the speed of a bus is 80 kmph and including stoppages, it is 60 kmph. For how many minutes does the bus stop per hour?
A man completes his journey in 8 hours. He covers half the distance at 40 kmph and the rest at 60 kmph. The length of the journey is?
Two trains, X and Y, travel from A to B at average speeds of 80 km/hr and 90 km/hr respectively. If X takes an hour more than Y for the journey, then the distance between A and B is _____.
A car completes a journey in seven hours. It covered half of the distance at 40 kmph and the remaining half at 60 kmph speed. Then, the distance (in km) covered is:
A train having a length of 500 m passes through a tunnel of 1000 m in 1 minute. What is the speed of the train in Km/hr?
Find the average speed of train if it covers first half of the distance at 3 kmph and second half of the distance at 6 kmph.
A 1200 m long train crosses a tree in 120 sec, how much time will it take to pass a platform 700 m long?
Running at a speed of 60 km per hour, a train passed through a 1.5 km long tunnel in two minutes, What is the length of the train ?
A cyclist, after cycling a distance of 70 km on the second day, finds that the ratio of distances covered by him on the first two days is 4 : 5. If he travels a distance of 42 km. on the third day, then the ratio of distances travelled on the third day and the first day is:
A car covers a certain distance in 25 hours. If it reduces the speed by 1/5th, the car covers 200 km less in the same time period. The original speed of the car is how much?
To cover a distance of 81 km in 1.5 hours what should be the average speed of the car in meters/second?
In a school 40% of the students play football and 50% play cricket. If 18% of the students neither play football nor cricket, the percentage of the students playing both is :
The average age of 20 boys in a class is 12 years. 5 new boys are admitted to the class whose average age is 7 years. The average age of the boys in the class becomes
The average age of 40 students of a class is 18 years. When 20 new students are admitted to the same class, the average age of the students of the class is increased by 6 months. The average age of newly admitted students is
The average age of four brothers is 12 years. If the age of their mother is also included, the average is increased by 5 years. The age of the mother (in years) is :
The average of some natural numbers is 15. If 30 is added to first number and 5 is subtracted from the last number the average becomes 17.5 then the number of natural number is
Total weekly emoluments of the workers of a factory is Rs.1534. Average weekly emolument of a worker is Rs.118. The number of workers in the factory is :
The average monthly salary of all the employees in an industry is Rs.12,000. The average salary of male employees is Rs.15,000 and that of female employees is Rs.8,000. What is the ratio of male employees to female employees ?
If the average weight of 6 students is 50 kg; that of 2 students is 51 kg; and that of other 2 students is 55 kg; then the average weight of all students is
The total marks obtained by a student in Physics, Chemistry and mathematics together is 150 more than the marks obtained by him in Chemistry. What are the average marks obtained by him in Physics and Mathematics together?
The average temperature on Sunday, Monday and Tuesday was 45 °C and on Monday, Tuesday and Wednesday it was 42 °C. If on Wednesday it was exactly 40 °C, then on Sunday, the temperature was
The average age of P and Q is 30 years. If R were to replace P, the average would be 25 and if R were to replace Q, the average would be 26. What are the age of P, Q and R?
An average of 5 numbers is 40. If two of them are excluded then the average of remaining numbers becomes 45. Find out the excluded numbers.
Average marks of total 8 subjects were calculated to be 74. Later it was discovered that marks of 1 subject was misread as 98 instead of 89. What is the correct average?
The average weight of 5 members of a family is 67. Individual weight of four members are 65 kg, 71 kg, 63 kg and 72 kg. Find the weight of fifth member of the family.
The average of five consecutive even integers is 10. What is the product of the first and the last number?
The average of 25 numbers is 104. If 12 is added in each term, then the average of new set of numbers is
The average of 36 numbers is 20. If three numbers, 15, 20 and 25 are removed then the average of the remaining numbers is
The sum of five numbers is 260. The average of the first two numbers is 40 and the average of the last two numbers is 70. Determine the third number?
The average of five numbers is 66. If the average of first four numbers is 68, what is the value of the fifth number?
The average weight of a class of 30 students is 42 kg. If the weight of the teacher be included, the average weight increases by 500 g. Find the weight of the teacher.
A shop is closed on Sunday. The average sales per day for remaining six days is Rs. 8240 and the average sales from Monday to Friday is 9000. The sales on Saturday is?
The average age of eight members of a family is 45 years. If one of them is excluded the average is decreases by 2 years. Find the age of excluded person?
In a school, the average age of students is 13 years and the average age of 14 teachers is 34 years. If the average age of teachers and students combined is 14 years, then the number of students is?
The average age of 7 people in a family is 24 years, If the age of the youngest member of the family is 3 years, what was the average age of the family at the birth of the youngest member?
Dravid scored 150 runs in the first test and 228 runs in the second. How many runs should he score in the third test so that his average score in the three tests would be 230 runs ?
The sum of Seven consecutive even numbers is 644. What is average of first four consecutive even number of the same set.
Average of 4 numbers is 15. Fourth number is twice of second number and first number is 1 less than second number and third number is 1 more than the second number. Find the second number.
The average of 25 numbers is 15 and the average of first five numbers is 35. What is the average of remaining numbers?
The average weight of 20 men is increased by 2 kg. when one of the men, Which weight 80 kg is replaced by a new man. Find the weight of the new man.