Question

1. if a and b are co prime. then their LCM is

ab


a/b


1


a+b

2. AN angle of 138° is a/an ______ angel

straight


obtuse


acute


reflex

3. How many million makes 2 crores?

2


20


120


200

4. If the ratio between the cost price and selling price of an article is 2:3. The selling price of that article is Rs 1920. Find the cost price ?

Rs 1280


Rs 1460


Rs 2120


Rs 1620

5. each angel of a equilateral triangle measures

45


90


60


75

6. 35 kg= ____ mg

35000000


350000000


3500000


Option 5


35000

7. The sum of (-15 ) and (-9) is

-6


6


24


-24

8. which of the following is a perfect number

6


9


5


1

9. What is the LCM of 95 and 19 ?

95


1805


9


19

10. 25639 rounded off to the nearest 1000 is

20000


30000


25000


26000

11. Forty million twenty thousand ninety five in figure is

48020095


4802095


48002095


48200095

12. 10 Crore= ____ million

10000


1000


10


100

13. the Hindu Arabic numerals for MCDLXIX is

1469


1619


1449


1649

14. The successor of smallest whole number is

2


0


1


3

15. every composite number has at least _____ factor

3


2


1


4

16. A shopkeeper sold some book at Rs.35 per article and earned rupees 1400. How many book did the shopkeeper sold ?

30


45


35


40

17. the predecessors of (-80) is

-79


79


-81


81

18. What fraction of 2 hours is 20 minutes

1/5


2/5


1/10


1/6

19. How many prime number are between 80 and 90?

2


4


3


1

20. 40÷0=

not defined


1


40


0

21. A fraction with numerator 1 is called ___ fraction

equivalent


unlike


unit


like

22. if 2 whole number is multiplied. The product is_____ number

natural


none


whole


both

23. 178 is divisible by

8


4


9


2

24. Vipin started a business with an investment of Rs. 42,000. After 5 months Amit joined him with a capital of Rs. 22,000. How much money do they need to make total investment 1 lakh ?

24000


48000


36000


Rs. 52000

25. The smallest 5 digit number formed by using 3,0,5 is

53000


35000


30005


350

26. Roman numerals for 999 is

CMXCXI


IM


CMXCIX


CMIC

​

Answer 1

Step-by-step explanation:

1. if a and b are co prime. then their LCM is

a*b