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Since 74 is not divisible by 12. Therefore, 74 can never be the LCM if the HCF is 12.
Average weight of 17 nurses is 48 kg. If the weight of one more nurse is included, then average weight is increased by 1 kg. Find the weight of the newl...
There are five containers in a truck hold. The weight of the first container is 100 kg and the weight of the second container is 20% higher than the wei...
The average age of a class of 20 girls is 15 years. If 5 new girls having average age of 10 years join the class, then the average age of the class beco...
In a Company the average income of all the employees is Rs. 22000 per month. Recently the company announced an increment of Rs. 2000 per month for all t...
The average of five numbers is 30. If one of the numbers is removed, the average becomes 25. What is the number that was removed?
A group contains some number of members. If 2 members with an average weight of 61 kg leave the group, the average weight of the remaining members decre...
In a College with 1200 students, the average age of the boys is 24 years and that of girls is 17 years. If the average age of the college is 22 years an...
There are 15 numbers such that average of first 12 numbers is 65 while the average of last five numbers is 70. Find the 12th number, if the ratio betwee...
The average age of a group of 20 students is 40 years. Two persons of age 35 years and 30 years, left the group and 2 persons of age 40 years and 85 yea...
The average cost price of 25 pens (having equal cost price) decreased by Rs.4, when one of the pen is replaced by a new pen having cost price of Rs.60. ...
