Maths Questions for SSC CGL and Railways Exams, RR ACADEMY MEERUT FOR JOIN CLASSES CALL@8393068250

Directions (1-5): What should come in place of the question mark (?) in the following number series?

Q1. 121,     130,     155,     204,     285,       406,      ?

(a) 558

(b) 575

(c) 564

(d) 550

(e) None of these

Q2. 5,     7,     30,     272,     ?,     108852

(a) 4534

(b) 4554

(c) 4354

(d) 4252

(e) 4054

Q3. 1,    1,    2,    4.5,    11,     30,      ?

(a) 87

(b) 99

(c) 85

(d) 93

(e) None of these

Q4. 1571,    1614,    1664,    1728,    1813,    ?   

(a) 1926

(b) 1920

(c) 1936

(d) 1896

(e) None of these

Q5. 51,    64,     116,      233,    441,     766,     ?

(a) 1334

(b) 1234

(c) 1254

(d) 1285

(e) None of these

Solutions (1-5):

Q6. Two pipes A and B can fill an empty tank in 36 and 54 hours respectively. Another pipe C can empty the filled tank in 72 hours. All the three pipes are opened together and after working together for 18 hours pipes A and B are replaced by two other pipes D and E whose efficiencies are three times and six times that of A and B respectively. Find in how many times the remaining part of tank will be filled?

(a) 48/17 hr

(b) 30/13 hr

(c) 33/17 hr

(d) 20/13 hr

(e) None of these

Q7. A shopkeeper gave an additional 20 per cent discount on the reduced price after giving 15 per cent standard discount on an article. If Arpita bought that article for Rs.4420, what was the original price? 

(a) Rs. 6000

(b) Rs. 6400

(c) Rs. 6500

(d) Rs. 6200

(e) None of these

Q8. The average age of Ravi and Raghav is 24 years. If a new person Ankit is also included, the average age is increased by 1.5 years. What is the age of Ankit?

(a) 27

(b) 28.5

(c) 22

(d) 18

(e) None of these

Q9. In an examination, a student Rahul obtained 35% of the maximum marks and failed by 25 marks. Another student Ravi scored 45% of the maximum marks which was 20 marks more than the passing marks. The necessary percentage required for passing is 

(a) 32.75%

(b) 23.5%

(c) 40.55%

(d) 20%

(e) 48.25%

Q10. A, B and C start a business together by investing their initial sum of 12500,20000 and 17500 respectively. After four month A and B withdrew a sum equal to 2500 and 5000 respectively. After another four month C withdrew 5000 and at the same time A invested an additional sum of 7500. If total profit after a year was calculated as Rs.11,872, what is the share of B in the profit?

(a) Rs. 4480

(b) Rs. 5000

(c) Rs. 5500

(d) Rs. 4500

(e) None of these

Solutions (6-10):