Greatest among the following numbers is-
Q1. 1, (3)1/4, (2)1/2, (5)1/6
Ans - (2)1/2
Find the least common multiple of the following.
Q2. 7/11,22/26,169/192
Ans - 26026
Q3. What is the remainder if 28912 is divided by 9?
Ans - 4
Q4. The greatest number less than 1400, which is divisible by both 12 and 13 is-
Ans - 1248
Q5. Find the product of all the factors of 60.
Ans - `60^6`
Q6. Find the number of trilling zero in 69!
Ans - 15
Q7. Sum of two numbers is 240 and their quotient is 7. Find the difference of the two numbers
Ans - 180
Q8. Find the remainder when 23292 is divided by 3
Ans - 1
Q9. When n is divisible by 7 the remainder is 4. What is the remainder when n2 is divided by 7?
Ans - 2
Q10. A and B represent the numbers of even and odd factors of 180 respectively. Find the ratio between A and B.
Ans - 2 : 1
Q11. Find the last digit of 23 × 87 × 22.
Ans - 2
Q12. Red, Green and Yellow light of a traffic signal blinks at an interval of 15 seconds, 20 seconds, and 25 seconds. If they all blink together at 6:00 AM then at what time they will again blink simultaneously.
Ans - 6 : 05 am
Q13. A pickpocket stole the wallet of Mr. Jitender. Jitender remembers that before he lost his wallet he bought a notebook and a marker. He pays 15𝑡ℎ15th of his money for buying the notebook, and of the remaining, he spends 25% on buying marker which is equal to Rs 12. Find the amount of money lost by Mr. Jitende
Ans - 36
Q14. Which of the following will completely divide 15869.
Ans - 7
Q15. Find the Sum of all the factors of 150.
Ans - 372
