Search questions

Three classes have average ages 16, 18 and 21 respectively. The number of students in the three classes is in the ratio 3 : 4 : 5. What is the overall average age of all the students together?

The overall average salary for all employees in an office is ₹32,000. Officers earn an average salary of ₹56,000, while non-officers make an average of ₹20,000. If there are 17 officers, determine the number of non-officers.

A train covered a certain distance in 3 parts with average speeds of 12 km/h, 15 km/h and 30 km/h. What is the average speed over the entire journey, assuming equal distances?

The average marks of 40 students in a class is 72. If the marks of one student were wrongly entered as 92 instead of 72, what is the CORRECT average?

The average salary of employees in a company is ₹30,000. If a new employee with a salary of ₹60,000 joins, the average increases by ₹300. Find the number of employees originally in the company.

The average of 11 numbers is 50. The difference of the largest and smallest number is 60 . If the largest number is removed, the average of the remaining 10 numbers is reduced by 4 . Find the smallest number?

In a warehouse, 9 crates of goods have an average weight of 94.5 kg . One of the crates, weighing 89.2 kg , is replaced by a new crate. As a result, the average weight becomes 97.1 kg . Later, 5 more crates are added, each weighing 101.3 kg . What is the weight of the new crate that replaced the old one ?

The average marks of 50 students in a class is 80. Later, it was discovered that a student's marks were recorded as 39 instead of 92. What is the correct average?

The average score of 7 players was initially recorded as 55. However, it was later discovered that a score of 35 had been mistakenly read as 53 . Determine the correct average score.(Rounded up to two decimal places)

There are 49 members in group A, 35 members in group B and 31 members in group C. All the members of these groups went to a restaurant. The average amount spent on each member of group A, B and C is ₹106, ₹141 and ₹226, respectively. The total average amount (in ₹) spent per member is:

The average weight of 27 students of a class is 53 kg. If the weight of the teacher is included, the average rises by 700 grams. Find the weight (in kg) of the teacher.

There are 30 members in group $A$, 76 members in group B and 44 members in group C . All the members of these groups went to a restaurant. The average amount spent on each member of group A, B and C is ₹249, ₹168 and ₹498, respectively. The total average amount (in ₹) spent per member is:

The average pocket money of three children X, Y and Z of a family is ₹2,500 in a particular month. Y spends double and Z spends triple of what X spends during that month. If the average of their unspent money is ₹2,100, then X spends (in ₹):

A person walks 10 km to a destination in 2 hours. On the return journey, they walk the same 10 km back in 1 hour. What is the average speed for the entire journey?

A chemist prepares 80 litres of antiseptic solution by mixing two liquids 'A' and 'B' in the ratio 3 : 5. If the cost of 'A' is ₹55 per litre and 'B' is ₹40 per litre, what is the approximate average cost per litre of the final solution?

Rajesh covers one-third of his journey at a speed of 10 km/h, the next one-third at 20 km/h and the remaining part at 60 km/h. What is his average speed?

If the average of 16 consecutive even numbers is 111, find the smallest number.

A man travels from Gurugram to Jaipur, a distance of 360 km , at a speed of $90\mathrm{km}/h$. He then takes a break in Jaipur for 1.5 hours. After the break, he travels from Jaipur to Ajmer, a distance of 150 km , at a speed of $60\mathrm{km}/h$. What is his average speed for the entire journey from Gurugram to Ajmer ?

A student scored 25% more marks in History than in English. If the average of his marks in both subjects is 81 , what are his marks in English ?