Question
The average age of a group of 70 students is 14 years. If three students whose ages are 22 years, 20years, ________ years are replaced with three new students whose ages are 19 years, ______ years, and 32 years, then the new average age is increased by 0.4 years. The value given in the option, which of the following will correctly fill the banks.
The average age of a group of 70 students is 14 years. If three students whose ages are 22 years, 20years, ________ years are replaced with three new students whose ages are 19 years, ______ years, and 32 years, then the new average age is increased by 0.4 years. The value given in the option, which of the following will correctly fill the banks.
I. 17, 36
II. 22, 41
III. 15, 34
More Age Questions
- Rhea is 4 years elder to Mohan. The ratio of Rhea’s age 6 years ago to Mohan’s age 2 years hence is 3:4. What is Mohan’s present age?
- The present ages of A and B are in the ratio 2:3. After 6 years, their ages will be in the ratio 4:5. Find B’s present age.
- Four years hence, age of 'P' will be 19 years. Ratio of present age of 'Q' to 'P' is 4 : 3. If 'R' is 5 years younger than 'Q', then find the age of 'R' si...
- Present average age of P and Q is 24 years. Present age of R is 4 years more than P and 8 years less than Q. Find the ratio of present age of P to the pres...
- In four years, the age ratio of 'X' and 'Y' will be 10:13, respectively. The current average age of 'Y' and 'Z' is 54 years, and the present average age of...
- The ratio of age of ‘B’ after 5 years from now and age of ‘C’ 4 years ago from now is 7:4, respectively. The present age of ‘C’ is 50% of the present age o...
- The current age ratio of Aman to Bhanu is 4:1. In six years, Aman’s age will be three times Bhanu’s age at that time. What is Aman’s present age?
- Three years ago, the ratio of ages of C and D was 3:4. Seven years from now, the ratio of their ages will be 5:6. What is the current age of C?
- The present ages of A and B are in the ratio 5 : 7. Six years from now, the ratio of their ages will become 3 : 4. What is B’s present age?
- The ratio of ages of Aryan's grandfather and his father 14 years ago was 5 : 3. The present age of Aryan's grandfather is 7/2 of Aryan's age. If the age of...
Relevant for Exams:
Hey! Ask a query
Please enter email id
The email must be a valid email address.
Please enter Mobile Number
Please enter valid Mobile Number
Please enter your Doubt