IBPS RRB 2019 Prelims Quantitative Aptitude: PO/Clerk | 2nd July

IBPS RRB Quantitative Aptitude Quiz

Q1. The average of five numbers is 23. If the average of first two numbers is 21 and that of last two numbers is 19, what is the middle number from starting?

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Q2. In a class of 42 students, the average age of all students is 16 years. Due to admission of 6 new students in the class the average age increases by ½ years. Find the average age of new students admitted.

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Q3. The average age of Ranvir and Rihana is 18 years. When Ruby replaces Rihana, the average age is increased by 1 and when Rihana replaces Ranvir the average age becomes 17 years. What is the age of Ruby?

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Q4. The ratio of the ages of A, B and C is 3 : 4 : 5. If the average of their ages is 24 years then what is the sum of ages of B and C?

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Q5. The ratio of present ages of Abhishek and Radha is 9 : 10 and ratio of present ages of Radha and Gopal is 5 : 4. If the average age of Abhishek, Radha and Gopal is 27 years. Then find the average age of Gopal and Abhishek 2 years ago.

 

 

 

 

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Q6. The average of five consecutive even numbers is 28. What is difference between squares of largest number and second smallest number?

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Q7. The average age of a group of 14 person is 27 years and 9 months. Two persons, each 42 years old, left the group. What will be the average age of the remaining persons in the group?

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Q8. The average age of some males and 15 females is 18 years. The sum of the ages of 15 females is 240 years and average age of males is 20 years. Find the number of males.

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Q9. In the afternoon, a student read 100 pages at the rate of 60 pages per hour. In the evening, when she was tired, she read next 100 pages at the rate of 40 pages per hour. What was her average rate of reading, in pages per hour?

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Q10. Ratio of ages of A to B, 4 year before from now was 8 : 5 and ratio of ages of B to C 3 years hence will be 9 : 11. If the present average age of B and C is 27 years then find the present age of A.

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Directions (11-15): Simplify the following questions. 


Q11. 

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Q12. 3543.6 + 2452.3 + 1650.8 – 5842.6 =?

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Q13. 

 

 

 

 

 

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Q14. 45% of 330 + 33% of 450 =? + 43% of 400

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Q15. 71% of 700 + 63% of 300 – 57% of 400 =?

Solution:

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