Quantitative Ability Set 1 Welcome to your Quantitative Ability Set 1 A sum lent out at 12% per annum compound interest for two years amounts to Rs. 15,660. The sum lent is a. Rs. 12,000 b. 12,250 c. Rs. 12,484 d. Rs. 12,880 The interest rate that doubles a sum in 10 years is a. 12% b. 11% c. 10% d. 9% A sum of Rs. 1000 in 2 years on compound interest of 5% per annum. The % rate of interest is a. 5 b. 6 c. 7 d. 10 Ramesh invested a sum of money at simple interest at a certain rate of interest for three years. Had it been invested at a 4% higher rate, it would have fetched Rs. 480 more. Find out the principal amount that was invested by Ramesh? a. Rs. 3000 b. Rs. 4000 c. Rs. 5000 d. Rs. 4500 A salary of an officer being increased by 10% every year becomes Rs. 48400 in the third year. What was his original salary? a. Rs. 45000 b. Rs. 44000 c. Rs. 42000 d. Rs. 40000 When Usha was thrice as old as Nisha, her sister Asha was 25. When Nisha was half as old as Asha, then sister Usha was 34. Their ages add to 100.100. How old is Usha? a. 20 b. 30 c. 40 d. 50 The average age of a family of five members is 24 years. If the present age of the youngest member is 88 years, what was the average age of the family at time of the birth of the youngest member? a. 50 b. 40 c. 30 d. 20 The average of 1010 numbers is calculated as 15.15. It is discovered later on that while calculating the average on number, namely 3636 was wrongly read as 26.26. The correct average is a. 12.4 b. 14 c. 18.6 d. 16 Paras Khadka takes 5 wickets for 26 run in the final match due to which his bowling average improves by 2. His old bowling average was 14. Find the total number of wickets after the final match. a. 20 b. 22 c. 24 d. 24 The average mark of a class in science test is 75. Geeta was the topper with 96 marks. If her mark was wrongly entered as 69, the average of the class decreases b 1. Find the number of students in the class? a. 24 b. 25 c. 27 d. 29 Arun obtained 76, 65, 82, 67 and 85 marks (out in 100) in English, Mathematics, Chemistry, Biology and Physics. What is his average mark? a. 53 b. 54 c. 72 d. 75 Arun obtained 76, 65, 82, 67 and 85 marks (out in 100) in English, Mathematics, Chemistry, Biology and Physics. What is his average mark? a. 12 b. 13 c. 11 d. 14 The average of six number is x and the average of three of these is y. If the average of the remaining three is z, then a. 2x=y+z b. x=y+z c. x+2y+2z d. None of these In an election between two candidates, one got 55% of the total valid votes, 20% of the votes were invalid. If the total number of votes was 7500, what was the number of valid votes that the other candidate got? a. 280 0 b. 2700 c. 2100 d. 2500 The population of a town increased from 1,75,000 to 2,62,500 in a decade. What is the average percent increase of population per year? a. 4% b. 6% c. 5% d. 50% What is the 0.5% of 100,000? a. 0.05 b. 0.50 c. 50 d. 500 If a sum of money is divided equally among n children, each child will receive Rs. 60. If another child is added to the group, then when the sum is divided equally among all children, each child will receive a Rs. 50 share. What is the sum of money? a. Rs. 100 b. Rs. 120 c. Rs. 300 d. Rs. 400 A vendor bought bananas at 6 for a rupee. How many for a rupee must he sell to gain 20%? a. 3 b. 4 c. 5 d. 6 If there are 5 routes for travelling between two places A and B, how many option are there for a person to travel from A to B and return back? a. 5 b. 10 c. 9 d. 25 If 5a=3b=25, then 30ab=? a. 100 b. 150 c. 625 d. 1250 Direction (Question 46 to question 50). Find the odd on out. 1, 3, 9, 12, 19, 29 a. 12 b. 9 c. 1 d. 3 18, 27, 64, 125, 196, 216, 343 a. 64 b. 196 c. 216 d. 18 3, 5, 11, 14, 17, 21 a. 21 b. 17 c. 14 d. 3 1, 4, 9, 16, 23, 25, 36 a. 9 b. 23 c. 25 d. 36 24, 36, 52, 72, 96 a. 72 b. 36 c. 24 d. 52 Please fill in the comment box below. Time's up