In the competitive landscape of OSSSC (Odisha Sub-ordinate Staff Selection Commission) exams such as RI (Revenue Inspector), ARI (Assistant Revenue Inspector), Amin, SFS (Statistical Field Surveyor), and ICDS Supervisor, a strong foundation in arithmetic is crucial. Arithmetic forms the backbone of numerical aptitude and is an essential skill set for these examinations. To help you hone your arithmetic skills, here’s a curated list of the top 30 arithmetic multiple-choice questions (MCQs) with answers, ranging from moderate to difficult levels.
Top 30 Arithmetic MCQS For OSSSC RI,ARI, Amin, SFS, ICDS Supervisor
These arithmetic questions are designed to challenge your quantitative aptitude and provide valuable practice for OSSSC RI, ARI, Amin, SFS, and ICDS Supervisor exams. Regular practice with such questions will not only improve your accuracy but also boost your confidence in handling complex numerical scenarios. Remember, mastering the basics of arithmetic is the key to success in these competitive examinations. Good luck!
Q1. If Nandita scored 89 marks in Hindi, 92 marks in Sanskrit, 98 marks in Mathematics, and 81 marks in English out of 105 maximum marks each, how many marks did she score in Science?
(a) 60
(b) 75
(c) 65
(d) 70
Answer: (a) 60
Q2. A number is divided into two parts such that 80% of the first part is 3 more than 60% of the second part, and 80% of the second part is 6 more than 90% of the first part. What is the number?
(a) 125
(b) 130
(c) 135
(d) 145
Answer: (c) 135
Q3. The expenses on rice, fish, and oil of a family are in the ratio 12 : 17 : 3 respectively. If the price of these articles is increased by 20%, 30%, and 50% respectively, what is the total increase in expenses?
(a) 113/8 %
(b) 57/8 %
(c) 449/8 %
(d) 225/8 %
Answer: (d) 225/8 %
Q4. If a diamond worth Rs. 5184 is cut into 3 pieces in the ratio 1 : 2 : 3, what is the loss involved in cutting?
(a) Rs. 3068
(b) Rs. 3088
(c) Rs. 3175
(d) Rs. 3168
Answer: (d) Rs. 3168
Q5. The total strength of Capital Education is 5000. If the number of males and females increases by 8% and 16% respectively, what was the number of males initially?
(a) 2500
(b) 2000
(c) 3000
(d) 4000
Answer: (a) 2500
Q6. The rates of simple interest in two banks A and B are in the ratio 5 : 4. If a person wants to receive equal half-yearly interest from both banks, in what ratio should they deposit their savings?
(a) 2 : 5
(b) 4 : 5
(c) 5 : 2
(d) 5 : 4
Answer: (b) 4 : 5
Q7. One year ago, the ratio between Laxman’s and Gopal’s salary was 3 : 4. If the ratios of their individual salaries between last year’s and this year’s salaries are 4 : 5 and 2 : 3 respectively, what is Laxman’s current salary?
(a) Rs. 1040
(b) Rs. 1600
(c) Rs. 2560
(d) Rs. 3120
Answer: (b) Rs. 1600
Q8. In a village, 60% of families have a cow, 30% have a buffalo, and 15% have both. If there are 96 families in the village, how many families do not have a cow or a buffalo?
(a) 20
(b) 24
(c) 26
(d) 17
Answer: (b) 24
Q9. A businessman imported Laptops worth Rs. 210000, Mobile phones worth Rs. 100000, and Television sets worth Rs. 150000. If he had to pay 10% duty on Laptops, 8% on phones, and 5% on Television sets, what is the total duty he had to pay?
(a) 36500
(b) 37000
(c) 37250
(d) 37500
Answer: (a) 36500
Q10. In a college, 60% of students study math, 55% study commerce, and 15% study both. If the ratio of boys to girls who study math only is 3 : 2 and the ratio of boys to girls who study commerce only is 2 : 3, what percent of total girls study only math and only commerce together?
(a) 102%
(b) 109%
(c) 117%
(d) 123%
Answer: (a) 102%
Q11. Mr. Raghav spends a portion of his salary on various expenses. If his annual salary is 10.8 lacs and he spends 20% on paintings, 25% on lighting and furniture, and 15% on food and other supplements, what is his total spending?
(a) 137.4 lacs
(b) 1.374 lacs
(c) 13.74 lacs
(d) 11.74 lacs
Answer: (c) 13.74 lacs
Q12. If the entrance ticket price of an exhibition decreased by 20% resulting in a 44% increase in sales amount, what was the percentage increase in the number of visitors?
(a) 64%
(b) 24%
(c) 80%
(d) 20%
Answer: (c) 80%
Q13. A tree’s height increases annually by 1/8th of its current height. If it stands today at 10 m height, how much will its height increase after 2.5 years?
(a) 3 m
(b) 3.44 m
(c) 3.6 m
(d) 3.88 m
Answer: (b) 3.44 m
Q14. If a number X is less than another number Y, where Y is three-fourths of 24, what is the sum of the two numbers X and Y?
(a) 30
(b) 33
(c) 36
(d) 24
Answer: (b) 33
Q15. Udita purchased a handbag for Rs. 2,520, which was 5% more than its actual price. What was the actual price of the handbag?
(a) Rs. 2,646
(b) Rs. 2,500
(c) Rs. 2400
(d) Rs. 2,450
Answer: (c) Rs. 2400
Q16. A sum of money amounts to Rs. 5,200 in 5 years and to Rs. 5,680 in 7 years at simple interest. What is the rate of interest per annum?
Options:
(A) 3%
(B) 4%
(C) 5%
(D) 6%
Correct Answer: (D) 6%
Q17: 12 kg of rice costing ₹30 per kg is mixed with 8 kg of rice costing ₹40 per kg. What is the average per kg price of the mixed rice?
(A) ₹35
(B) ₹34
(C) ₹38
(D) ₹37
Correct Answer: (B) ₹34
Q18: The average weight of five persons sitting in a boat is 38 kg. If the average weight of the boat and the persons sitting in the boat is 52 kg, what is the weight of the boat?
(A) 232 kg
(B) 242 kg
(C) 228 kg
(D) 122 kg
Correct Answer: (D) 122 kg
Q19: The average income of 40 persons is ₹4200 and that of another 35 persons is ₹4000. What is the average income of the whole group?
(A) ₹4100
(B) ₹4300
(C) ₹4050
(D) ₹4150
Correct Answer: (D) ₹4150
Q 20: If the average marks of three batches of 55, 60, and 45 students respectively are 50, 55, and 60, then what is the average marks of all the students?
(A) 54.68
(B) 53.33
(C) 55
(D) None of these
Correct Answer: (A) 54.68
Q21: Train A moving at a speed of 72 km/h crosses train B moving at 3/4th speed of train A in the same direction in 1 min and 26 seconds. The length of train A is 25/18th of the length of train B. What is the difference between the lengths of two trains?
(A) 70 m
(B) 85 m
(C) 110 m
(D) 60 m
Correct Answer: (A) 70 m
Q22: Two trains of lengths 100 m and 140 m respectively are running in opposite directions on parallel tracks. If their speeds are 29 km/hour and 43 km/hour respectively. In what time will they cross each other?
(A)12 seconds
(B) 10 seconds
(C) 20 seconds
(D) 16 seconds
Correct Answer: (A) 12 seconds
Q23: The speed of train A and train B is 93 km/hr and 51 km/hr, respectively. When both the trains are running in the opposite direction, they cross each other in 18 seconds. The length of train B is half of the length of train A. If train A crosses a bridge in 42 seconds, then find the length of the bridge.
(A) 610 m
(B) 480 m
(C) 605 m
(D) 240 m
Correct Answer: (C) 605 m
Q24: A train of length 287 m, running at 80 km/h, crosses another train moving in the opposite direction at 37 km/h in 18 seconds. What is the length of the other train?
(A) 300 m
(B) 298 m
(C) 289 m
(D) 285 m
Correct Answer: (B) 298 m
Q25: A 480 m long train takes 16 seconds to pass a pole. How long will it take to pass a platform that is 900 m long?
(A) 47 seconds
(B) 45 seconds
(C) 46 seconds
(D) 48 seconds
Correct Answer: (C) 46 seconds
Q26: The speed of two trains are in the ratio 6 : 7. If the second train covers 364 km in 4 hours, then what is the speed of the first train?
(A) 72
(B) 58
(C) 78
(D) 25
Correct Answer: (C) 78
Q27: The area of a square field is 625 sq. m. What is the length of its diagonal?
(A) 25 m
(B) 30 m
(C) 35 m
(D) 40 m
Answer: (B) 30 m
Q28: If the diameter of a circle is 14 cm, what is its circumference?
(A) 22 cm
(B) 28 cm
(C) 44 cm
(D) 38.5 cm
Answer: (C) 44 cm
Q29: What is the total surface area of a cube with a side length of 5 cm?
(A) 100 sq. cm
(B) 125 sq. cm
(C) 150 sq. cm
(D) 175 sq. cm
Answer: (B) 125 sq. cm
Q30: A cylindrical tank has a radius of 7 meters and a height of 10 meters. What is its total surface area?
(A) 314 sq. m
(B) 628 sq. m
(C) 440 sq. m
(D) 880 sq. m
Answer: (B) 628 sq. m
