Mathematics Questions Test – 2

 

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#1. The difference between the greatest and least prime numbers which are less than 100 is:

#2. The ratio of the number of coins of 25 paise, 50 paise, Rs.2 and Rs.5 is 5 ∶ 4 ∶ 3 ∶ 1, respectively. If the total amount of the coins is Rs.285, then the difference between the number of 25 paise and Rs.5 coins is:

#3. The number 5769116 is divisible by which of the following numbers?

#4. The ratio of HCF and LCM of two numbers a and b is 1:30 and the difference between the HCF and LCM is 493. Find the possible number of pairs of a and b.

#5. The ratio of marks obtained by Rajesh, Rakesh and Ramesh in an exam is 2 : 4 : 9. What are the marks obtained by Rakesh and Ramesh, if Rajesh scored 30 marks in the exam?

#6. Three bells ring at interval of 36 seconds, 40 seconds and 48 seconds respectively. They start ringing together at a par- ticular time They will ring to gether after every

#7. Working for 10 hours per day, 6 men can build a wall in a certain number of days. By working for how many hours/minutes per day can 12 men build the wall in the same days?

#8. Find the least multiple of 23, which when divided by 18, 21 and 24 leaves the remainder 7, 10 and 13 respectively.

#9. The least number is a perfect square and is also divisible by 10,12,15 and 18 is?

#10. If the least common multiple of two numbers, 1728 and K is 5184, then how many values of K are possible?

#11. If the radius of the base of a right circular cylinder is increased by 20% and the height is decreased by 30%, then what is the percentage increase/decrease in the volume?

#12. The HCF of two numbers is 21 and their LCM is 840. If one of the numbers is 49, then the other number is:

#13. A and B together can complete a certain work in 20 days whereas B and C together can complete it in 24 days. If A is twice as good a work man as C, then in what time will B alone do 40% of the same work?

#14. A and B can complete a work together in 48 days. A is 4 times as work efficient as B. In how many days can B alone complete the work?

#15. If the highest common factor (HCF) of x and y is 15, then the HCF of 36×2 – 81y2 and 81×2 – 9y2 is divisible by __________

#16. The maximum number of students among whom 1001 pens and 910 pencils can be distributed in such a way that each student gets same number of pens and same number of pencils, is:

#17. Two numbers are in the ratio 3 : 4. If their LCM is 240, the smaller of the two number is

#18. If the four-digit number 463y is divisible by 7, then what is the value of y?

#19. Which of the following numbers is divisible by 11?

#20. Find the HCF of 60, 148 and 382.

#21. The ratio of two numbers is 3 : 4 and their HCF is 5. Their LCM is :

#22. The smallest five digit number which is divisible by 12, 18 and 21 is:

#23. Two numbers are in the ratio 3:5. If 12 is added to both the numbers, then the ratio becomes 5:7. The sum of the given two numbers is

#24. A, B and C invested capital in the ratio of 3 : 4 : 8. At the end of the business term, they received the profit in the ratio of 2 : 3 : 5. What is the ratio of their invested time?

#25. The product of the two numbers is 1500 and their HCF is 10. The number of such possible pairs is/are:

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