Math BODMAS HCF LCM - YLB Online Educational Forum

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1. Find HCF 78, 52, 23

A.None of them

B.3

C.1

D.4

2. Find the Least Common Multiple (LCM) 91,49,7

A.675

B.None of them

C.637

D.543

3. 7614 +832 x 48 ÷ 16- 8

A.10343

B.6755

C.None of them

D.10102

4. Find the Least Common Multiple (LCM) 12,84,91

A.3278

B.1092

C.None of them

D.3589

5. 4+4+4+4 ÷ 4

A.12

B.13

C.25

D.None of them

6. Find HCF 154, 87

A.None of them

B.2

C.8

D.1

7. Find the Least Common Multiple (LCM) 40,54,62

A.None of them

B.33480

C.44778

D.22167

8. 18-3+33of3÷99-1

A.None of them

B.2.5

C.15

D.14

9. [{64-(12+13)}÷3]+15

A.87

B.34

C.28

D.None of them

10. Find HCF 84, 96, 63

A.3

B.9

C.None of them

D.2

11. Which two fractions are equivalent?

A.1/4 and 2/4

B.5/2 and 2/5

C.4/3 and 8/6

D.None of them

12. 15-[16-{12+21÷(9-2)}]

A.21

B.11

C.None of them

D.14

13. It takes Julia 1/2 hour to wash, comb her hair and put on her clothes, and 1/4 hour to have her breakfast. How much time does it take Julia to be ready for school?]

A.1/3

B.3/4

C.1/4

D.None of them

14. Find the Least Common Multiple (LCM) 45.90.15

A.90

B.70

C.None of them

D.80

15. 3 [3 + 3 {42 – 2 (13 +3)}]

A.99

B.88

C.55

D.None of them

16. Find HCF 96, 54, 75

A.3

B.None of them

C.8

D.0

17. 12- [20 ÷{8-2(9-5-2)}]

A.7

B.None of them

C.8

D.3

18. Find the Least Common Multiple (LCM) 12,32,40

A.480

B.443

C.870

D.None of them

19. 5 x 50 +57 -57 ÷ 57

A.306

B.404

C.None of them

D.654

20. 80+[20 x { 20-(10 ÷5) }]

A.None of them

B.551

C.770

D.440