Q1. The average weight of boys in a class of total strength 50 is 40 kg while average weight of girls is 35 kg. Find number of girls in class if average weight of class is 38 kg.
Q2. Average of four numbers is increased by 1 when a number is replaced by x and average of that four number is decreased by 1 when another number is replaced with x. What is the difference of the both numbers?
(e) Cannot be determined
Q3. Three years ago, average age of ‘Amit’, ‘Bittu’ and ‘Chitu’ is 27 years. Four years hence, ratio of Amit and Chitu’s age is 7 : 10. If Bittu is 6 years younger than Chitu, then find present age of ‘Amit’?
(a) 24 years
(b) 27 years
(c) 30 years
(d) 28 years
(e) 36 years
Q4. Sum of 4 consecutive even numbers are 94 more than the sum of 3 consecutive odd numbers and if average of largest even no. & smallest odd no. is 42. Then find the 2nd lowest even no.?
(a) 10 yrs
(b) 6 yrs
(c) 8 yrs
(e) 14 yrs
Q6. Shikha’s age is one-sixth of her father’s age. After 10 years, Sikha’s father’s age will be twice of Vignesh’s age at that time. If Vignesh’s eighth birthday was celebrated 2 years before, then what is Shikha’s present age?
(a) 7 years
(b) 4 years
(c) 6 years
(d) 4.5 years
(e) 5 years
Q7. Three year ago, the average age of five employee of a company was 54 yrs. The present average age is 52 yr after the inclusion of a new employee entered. Find the age of the new employee?
(a) 18 yr
(b) 25 yr
(c) 20 yr
(d) 22 yr
(e) 27 yr
Q8. Rati’s age is three years more than Meera’s age. Sushila’s age is 75% of Rati’s age. If average age of all of them is 12.75 years then find the age of Rati.
(a) 12 yrs.
(b) 15 yrs.
(c) 14 yrs.
(d) 16 yrs.
(e) 18 yrs.
Q9. 70% of a number is equal to 30% of another number. If average of both numbers is 24, then find the larger number
Q10. A fraction is such that, if we triple the numerator and double the denominator and again increased the numerator by 20% and decreased the denominator by 10%, we get 62.5% of 1 7/25. Find the original fraction.
Q11. 60% of the revenue of a college came from the post-graduation courses while 40% are from the graduation courses. If the college raises its fees by 30% for the post-graduation courses and by 20% for the graduation courses, then find the percentage increase in the revenues of the college.
Q12. Neeraj spent 22% of his monthly salary in Food, 20% of the remaining monthly salary in F.D. if his saving is Rs. 3120. Then find the expenses made by Neeraj on Food ?
(a) Rs. 1150
(b) Rs. 900
(c) Rs. 1000
(d) Rs. 1100
(e) Rs. 1200
Q13. A is an alloy of two types of metals x and y and B is an alloy of two types of metals y and z. Some quantity of B is mixed with 30 gms of A to form another alloy which has 55% of y metal concentration. Find the quantity of B taken if an alloy A has 60% of y concentration and B has 40% of y concentration.
(a) 15 gm
(b) 12.5 gm
(c) 10 gm
(d) 20 gm
(e) 7 1/2 gm
Q14. To make a toy, 30% raw material cost, 20% worker cost, 30% marketing cost and 20% packing cost occur. If price of raw material is increased by 50% then to get some profit % (20%) price has to increase 450 Rs. Find the cost of packing (in Rs.) ?
Q15. In an election only two candidates participate. Candidate ‘P’ got 50% less votes than ‘Q’. Had Q got 200 votes less there would have been a tie. What is the 8 times of the number of total votes polled.
Practice More Questions of Quantitative Aptitude for Competitive Exams:
Practice with Crash Course and Online Test Series for ECGC PO 2021:
- ECGC Online Coaching Classes for Probationary Officier 2021
- ECGC PO Mock Tests 2021 – Banking Online Test Series (With Solutions) by Adda247
- ECGC PO 2021 Complete eBooks Kit (English Medium)