Question
Khushi’s earnings decreased by 45% and after that
subsequently increased by 45%. Find the final loss % on his earnings.Solution
Final loss % =(m)2/100 = (45Ă—45)/100 =2025/100 =20.25%
Determine the number of Girls in a school of 60 Student when you know that the average weight of all Student is 50 kgs, the average weight of boys...
25 students go for a picnic. 10 of them spent Rs. 64 each on their food and rest spent Rs.4 more than the average expenditure of all 25. What was the to...
The average age of 12 girls is 35 years. If the age of two more girl is added the average decreases by one and a half year. What is the sum of the age o...
The average age of three children is 20 years. If their ages are in the ratio 5:6:9. Find the age of the youngest child.
The average expenditure of a man for the first 4 month is Rs.4000 and for the next 8 months is Rs.6000. If he saves 11000 in that year then find his ave...
The average age of a group of 80 students is 14 years. If 3 students whose ages are 16 years, 22 years, and _____ years are replaced by 3 new students w...
The average score of 10 students in a test is 85. If the average of the top 4 scores is 92.5, what is the average score of the other 6 students?
The average of five even numbers is 64. If we replace two of these even numbers, 84 and 92, with a single even number X, the new average decreases by 4....
Average marks scored by Vineet in five subjects are 75. The average marks scored by him (excluding his highest and lowest marks) are 60 and lowest marks...
There are 15 natural numbers whose average is 30.6. The average of the first 8 numbers is 28, and the average of the last 8 numbers is 33. Find the eigh...