Maths questions for SSC CGL, BANK and Railways Exams

Q1. The average age of a group of persons going for picnic is 16 years. Twenty new persons with an average age of 15 years join the group on the spot due to which their average age becomes 15.5 years. The number of persons initially going for picnic is 

(a) 5 

(b) 10

(c) 20

(d) 30

(e) None of these

Q2. In a mixture of 60 litres, the ratio of milk to water is 2 : 1. If the ratio of milk to water is to be 1 : 2, then amount of water (in litres) to be further added is

(a) 20

(b) 40

(c) 60

(d) 80

(e) None of these

Q3. How many litres of a 30% alcohol solution should be added to 40 litres of a 60% alcohol solution to prepare a 50% solution? 

(a) 30

(b) 20

(c) 24

(d) 32 

(e) None of these

Q4. Samant bought a microwave oven and paid 10% less than the original price. He sold it with 30% profit on the price he had paid. What percentage of profit did Samant earn on the original price? 

(a) 17%

(b) 20%

(c) 27%

(d) 32%

(e) 40%

Q5. What will be the difference in simple and compound interest on Rs. 2000 after three years at the rate of 10 percent per annum? 

(a) Rs. 160 

(b) Rs. 42

(c) Rs. 62

(d) Rs. 20 

(e) None of these

Solutions (1-5):

Directions (6-10): What should come in place of question mark (?) in the following number series?

Q6. 113,     130,     164,     215,     ?,   368

(a) 293

(b) 273

(c) 283

(d) 327 

(e) None of these

Q7. 36,      54,     135,     ?,     2126.25,     11694.375

(a) 472.5

(b) 427.5

(c) 572.5

(d) 562.5

(e) None of these

Q8. 112,     259,     392,     511,     616,     ?

(a) 701

(b) 707

(c) 711

(d) 715

(e) None of these

Q9. 4,     6,     12,     ?,90,     315,     1260

(a) 42

(b) 36

(c) 24

(d) 30

(e) None of these

Q10. 6,     7,     16,     51,     208,     ?,     6276

(a) 1045

(b) 941

(c) 836

(d) 1254

(e) None of these

Solutions (6-10):

Directions (11-15): Table is given below shows profit of two sellers in five different months. Study the table carefully and answer the following questions.

Q11. Total profit by Satish and Veer in April is what percent more than total profit by Satish and Veer in January?

(a) 27.5%

(b) 35%

(c) 30%

(d) 20%

(e) 25%

Q12. Satish spend his profit of May on the household item, savings and medicines in the ratio 7 : 4 : 2. Find the amount Satish spend on household and Medicines together. 

(a) 2000

(b) 4500

(c) 3000

(d) 3500

(e) 5500

Q13. Satish’s average profit in Feb and March is how much more than Veer’s average profit in Feb and March? 

(a) 2600

(b) 2800

(c) 3000

(d) 2400

(e) 2200

Q14. Find the ratio of Satish’s profit in March and May together to Veer’s profit in Same months?

(a) 7/10

(b) 9/7

(c) 10/7

(d) 7/9

(e) None of these

Q15. Satish’s profit in Jan and Feb together is how much percent more than Veer’s profit in April? 

Solutions (11-15):