## IBPS CLERK EXAM QUESTIONs of mathematics

**Questions and answers:-**

**1. The average age of a class of 39 students is 15 years .If the age of the teacher be included,**

**then the average increases by 3 months .Find the age of the teacher.**

**A) 25 years**

**B) 27 years**

**C) 35 years**

**D) 28 years**

**ans A**

**2. The average of eight numbers is 14. The average of six of these numbers is 16.The average**

**of the remaining two numbers is :**

**A)4**

**B) 8**

**C)16**

**D)none**

**ans B**

**3. The average of ten numbers is 7 . If each number is multiplied by 12 ,then the average of new**

**set of numbers is :**

**A) 7**

**B)19**

**C) 82**

**D) 84**

**ans D**

**4. The average of six numbers is 30.If the average of first four is 25 and that of last three is 35,**

**the fourth number is :**

**A) 25**

**B) 30**

**C)35**

**D)40**

**ans A**

**5. The average age of 30 students is 9 years .If the age of their teacher is included ,it becomes**

**10 years . The age of the teacher (in years ) is :**

**A) 27**

**B) 31**

**C) 35**

**D) 40**

**ans D**

**6. After replacing an old member by a new member, it was found that the average age of five**

**members of a club is the same as it was 3 years ago.what is the difference between the ages of**

**the replaced and the new member ?**

**A) 15 yrs**

**B) 8 yrs**

**C) 4 yrs**

**D) 2 yrs**

**ans A**

**7. Three years ago , the average age of A, B and C was 27 years and that of B and C, 5 years**

**ago was 20 years. A’s present age is :**

**A) 30 yrs**

**B) 35 yrs**

**C) 40 yrs**

**D)48 yrs**

**ans C**

**8. three years ago, the average age of a family of 5 members was 17 years. A baby having been**

**born , the average age of the family is the same today. The present age of the baby is :**

**A) 2 yrs**

**B) 2.4 yrs**

**C) 3 yrs**

**D)1.5 yrs**

**ans A**

**9. The average weight of 6 men decreases by 3 kg when one of them weighing 80 kg is replaced**

**by a new man . The weight of the new man is :**

**A) 56kg**

**B) 58 kg**

**C)62 kg**

**D) 76 kg**

**ans C**

**10. The average of ten numbers is 7 .If each number is multiplied by 12 , then the average of**

**new set of numbers is :**

**a) 7**

**B) 19**

**C) 82**

**d) 84**

**ans D**

**11. A batsman makes a score of 87 runs in the 17th inning and thus increases his average by 3**

**. Find his average after 17th inning.**

**A) 39**

**B) 38**

**C) 38.5**

**D) 39.5**

**ans A**

**12. Out of four numbers ,the average of first three is 16 and that of the last three is 15 .If the last**

**number is 18,the first number is :**

**A) 20**

**B) 21**

**C) 23**

**D) 25**

**Ans B**

**13. Narasimha,Madhu and pavan started a business by investing**

**Rs. 1, 20,000, Rs. 1, 35,000 and Rs 1, 50,000 respectively. Find the**

**share of Pavan, out of an annual profit of Rs 56,700.**

**A) Rs .16, 800**

**B) Rs.18, 900**

**C) Rs.21, 000**

**D) none**

**ANS: C**

**14. Anand and Deepak started a business investing Rs. 22,500 and Rs.35, 000 respectively. Out**

**of a total profit of Rs. 13,800, Deepak’s share is_______.**

**A) Rs .5400**

**B) Rs. 7200**

**C) Rs. 84,000**

**D) 94,000**

**ANS: C**

**15. A starts business with Rs. 35,000 and after 5 months, B joins with A as his partner. After a**

**year, the profit is divided in the ratio 2:3. What is B’s contribution in the capital?**

**A) Rs .7500**

**B) Rs. 8000**

**C) Rs. 8500**

**D) Rs. 9000**

**ANS: D**

**16. A and B are partners in a business. A contributes 1/4 of the capital for 15 months and B**

**received 2/3 of the profit .For how long B’s money was used.**

**A) 6 months**

**B) 9 months**

**C) 10 months**

**D) 1 year**

**ANS: C**

**17. X and Y invested in a business. They earned the profit, which they divided in the ratio of 2:3.**

**If X invested Rs. 40,000, the amount invested by Y is**

**A) Rs .60, 000**

**B) Rs. 8000**

**C) Rs. 50,000**

**D) Rs. 90,000**

**ANS: A**

**18. A, B and C enter into a partnership and their shares are in the ratio 1/2:1/3:1/4.After 2**

**months, A withdraws half of his capital and after 10 months, a profit of Rs. 378 is divided among**

**them. What is B’s share?**

**A) Rs .129**

**B) Rs. 144**

**C) Rs. 156**

**D) Rs. 168**

**ANS: B**

**19. A, B, C enters into a partnership investing Rs 35000 Rs 45000 and Rs 55000 respectively.**

**The respective shares of A, B and C in annual profit of Rs 40,500 are**

**A) Rs.10, 500 Rs.13, 500 Rs.16, 500**

**B) Rs.11, 500 Rs.13, 000Rs.16, 000**

**C) Rs.11, 000 Rs.14, 000 Rs.15, 500**

**D) Rs.11, 500 Rs.12, 500 Rs16,500**

**ANS: A**

**20. 2 is what percent of 50?**

**A)2%**

**B)10%**

**C)100%**

**D)4%**

**ANS D**

**21. 5% of (25% of Rs1600) is**

**A)Rs. 5**

**B)Rs 17.50**

**C) Rs 20**

**D)Rs 25**

**ANS C**

**22. In an examination, 35% of the students passed and 455 failed. How many students**

**appeared for the examination?**

**A) 490**

**B) 700**

**C) 845**

**D) 1300**

**ANS B**

**23. At an election a candidate who gets 84% of the votes is elected by a majority of 476**

**Votes what is the total number of votes polled?**

**A) 672**

**B) 700**

**C) 749**

**D) 848**

**ANS B**

**24.1100 boys and 700 girls are examined in a test; 42% of the boys and 30% of thegirlsPass.The**

**percentage of the total who failed is:**

**A) 58%**

**B) 62 2/3%**

**C) 64%**

**D) 78%**

**ANS B**

**25. Find S.P when C.P= Rs 56.25,gain=20%.**

**A) 68.34**

**B) 67.50**

**C) 61.25**

**D) 66.66**

**ANS B**

**26. Find C.P when S.P =Rs 40.60, gain =16%**

**A) 25**

**B) 45**

**C) 35**

**D) 55**

**ANS C**

**27. A man buys a cycle for Rs 1400 and sells it at loss of 15% what is the selling price of the**

**cycle?**

**A) Rs 1090**

**B) 1160**

**C) 1202**

**D) 1190**

**ANS D**

**28. A shopkeeper purchased 70 kg of potatoes for Rs. 420 and sold the whole lot at the rate of**

**Rs 6.50 per kg .What will be his gain percent?**

**A) 4 1/6 %**

**B) 6 1/4 %**

**C) 8 1/3 %**

**D) 20%**

**ANS C**

**29. A man buys an article for Rs 27.50 and sells it for Rs 28.60 .Find his gain %?**

**A) 4**

**B) 8**

**C) 2**

**D) none**

**ANS A**

**30.How is my father’s wife’s grandfather’s only child’s sons is related to me?**

**A) Brother**

**B) Uncle**

**C) Cousin**

**D) Nephew**

**ANS B**

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