Important Arithmetic Maths Questions for RRB NTPC, SSC CGL, SBI PO & SBI Clerk

Important Arithmetic Maths Questions
Q1. Jaydev Undadkat‘s present age is two-ninth of the age of his mother. After 10 years, he will be four-eleventh of the age of his mother. How old is the mother after 15 years?

Q2. Jully is 25 years old. If Rahul’s age is 25% greater than that of Jully then how much percent Jully’s age is less than Rahul’s age?

Q3. The percentage profit earned by selling an article for ₹ 2120 is equal to the percentage loss incurred by selling the same article for ₹ 1520. At what price should the article be sold to make 25% profit?
Q4. The ratio of the amount for two years under compound interest annually and for one year under simple interest is 6:5. When the rate of interest is same, then the value of rate of interest is:

Q5. P and Q are two alloys of brass and bronze prepared by mixing metals in the ratio 7 : 2 and 7 : 11 resp. If equal quantities of the alloys are melted to form a third alloy R, Find the ratio of brass and bronze.

Q6. M and N can do a piece of work in 30 days, while N and O can do the same work in 24 days and O and M in 20 days. They all work together for 10 days when N and O leave. How many days more will M take to finish the work?

Q7. Inlet A and B can fill a Tank alone in 48 Hours and 24 Hours respectively. Another Inlet C can empty the same Tank alone in 36 Hours. In an empty Tank for the First hour, Inlet A is opened alone, Second Hour Inlet B is opened alone, Third Hour Inlet C is opened alone. This process is continued until the Tank is filled. Then Inlet B is opened for How many Hours?

Q8. Sundar Pichai covered (2/3)rd of a total journey at his usual speed. He covered the remaining distance at (3/4)th of his usual speed. As a result, he arrived 30 minutes later than the time he would have taken at usual speed. If the total journey was 180 km. What was his usual speed?

Q9. Sudhir rows to a place 60 km distant and come back in 35 hours. He finds that he can row 4 km with the stream in the same time as 3 km against the stream. Find the speed in still water and in stream:

Q10. A card from a deck of 52 cards is lost. From the remaining cards of the deck, two cards are drawn and are found to be both hearts. What will be the Probability of the lost card being a heart?

Q11. A bag contains 6 White 4 Black 2 Pink and 3 Green balls. If four balls are picked at random, what is the probability that at least one is Black?

Q12. There are 100 tickets in a box numbered 1 to 100. 3 tickets are drawn at one by one. What will be the probability that the sum of number on the tickets is odd?

Q13. What will be the probability that in a random arrangement of the letter of words in the word ‘PROBABILITY’ the two I’s come together?

Q14. A sphere of 5 cm radius is melted and small sphere of radius 1 cm is made from it. What will be the number of sphere that can be made from it?

Q15. The ages of P, Q and R together are 57 years. Sis thrice as old as P and R is 12 years older than P. Then, the difference between ages Q and R is?

Q16. The price of a car is ₹ 4,50,000. It was insured to 80% of its price. The car was damaged completely in an accident and the insurance company paid 90% of the insurance. What was the difference between the price of the car and the amount received?

Q17. A dishonest trader marks up his goods by 80% and gives discount of 25% . Besides he gets 20% more amount per kg from wholeseller and sells 10% less per kg to customer. What is the overall profit percentage ?

Q18. The ratio of the amount for two years under compound interest annually and for one year under simple interest is 6:5. When the rate of interest is same, then the value of rate of interest is:

Q19. Atul starts a business with Rs 25000. After few months Bhairav join him with Rs 20000. If the ratio of their profit after 1 year is 15:8 find after how many months Bhairav joined Atul?

Q20. M, N and P can all together do piece of work in 20 days, in which N takes twice as long as M and P together do the work and P takes twice as long as M and N together take to do the work. In how many days N can alone do the work?

Q21. Kedar Jadhav and Gopi Nath start a business with investments of ₹ 5000 and ₹ 3000 respectively. After 2 months, Kedar Jadhav takes out ₹2000 from his capital. After 1 more month, Gopi Nath takes out ₹2000 of his capital while Larry Page joins them with a capital of ₹ 6000. At the end of 9 months from the start, they earn a total profit of ₹4920. Which of the following is the share of each member respectively in the profit?