Math BODMAS HCF LCM - YLB Online Educational Forum

1. 4+4+4+4 ÷ 4

A.25

B.13

C.None of them

D.12

2. [{64-(12+13)}÷3]+15

A.87

B.28

C.None of them

D.34

3. 15-[16-{12+21÷(9-2)}]

A.11

B.None of them

C.21

D.14

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

A.None of them

B.870

C.443

D.480

5. Find the Least Common Multiple (LCM) 45.90.15

A.90

B.70

C.None of them

D.80

6. 80+[20 x { 20-(10 ÷5) }]

A.770

B.None of them

C.440

D.551

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

A.637

B.675

C.543

D.None of them

8. 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.3/4

B.1/4

C.None of them

D.1/3

9. 5 x 50 +57 -57 ÷ 57

A.654

B.306

C.404

D.None of them

10. Which two fractions are equivalent?

A.None of them

B.1/4 and 2/4

C.4/3 and 8/6

D.5/2 and 2/5

11. Find HCF 84, 96, 63

A.2

B.9

C.None of them

D.3

12. 3 [3 + 3 {42 – 2 (13 +3)}]

A.55

B.88

C.99

D.None of them

13. 12- [20 ÷{8-2(9-5-2)}]

A.3

B.None of them

C.7

D.8

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

A.None of them

B.44778

C.33480

D.22167

15. Find HCF 154, 87

A.1

B.2

C.None of them

D.8

16. 18-3+33of3÷99-1

A.14

B.15

C.None of them

D.2.5

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

A.3278

B.None of them

C.3589

D.1092

18. 7614 +832 x 48 ÷ 16- 8

A.6755

B.None of them

C.10343

D.10102

19. Find HCF 96, 54, 75

A.None of them

B.0

C.3

D.8

20. Find HCF 78, 52, 23

A.4

B.1

C.3

D.None of them