The average wage of a group of 25 labourers is Rs. 470. If 4 persons receiving average wage of Rs. 350 leave the group and 2 persons receiving average w...
The average number of books sold by Viren in first 5 months is 3000 and in first 6 months is 3800. If the number of books sold by him in 7th ...
The average height of each student in a class of 36 students is 169 cm. If 4 new students joined the class, then the average height of the each student ...
The average mark obtained by 130 candidates in a certain examination is 40. If the average marks of passed candidates are 45 and that of the failed cand...
In a school with 400 students, the average of the age of the boys is 16 years and that of the girls is 12 years. If the average age of the school is 14 ...
The average score obtained by 28 students in a class test is 68 marks. The top place was shared by 3 people who got the same score. If the lowest score ...
A bowler gives 15.2 runs per wicket. He gives 32 runs and takes 4 wickets in the last match after which his average becomes 14.4 runs per wicket. How ma...
Average 20 numbers is ‘x’. If the average of first 12 numbers is 62.5 while average of last 5 numbers is 84.8 and 13th, 14th...
The average weight of 10 books is 5 kg. If 6 new books are added, the new average increases by 3 kg. What will be the average weight of the 6 new books?
The average age of a class of 22 girls is 18 years. If 2 new girls having average age of 12 years join the class, then the average age of the class beco...