Mental Ability-Basic Algebra (NCO- Cyber Olympiad Class 7): Questions 5 - 9 of 11

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Question number: 5

» Mental Ability » Basic Algebra

Match List-Ⅰ List-Ⅱ▾

Question

Match the following
List-Ⅰ List-Ⅱ

(A)

( ab)2

(i)

a2+b22ab

(B)

(a+b)

(ii)

( a2b2 )

(C)

( a+b)2

(iii)

a2+b2+2ab

Choices

Choice (4) Response
  • (A)
  • (B)
  • (C)
a.
  • (iii)
  • (ii)
  • (i)
b.
  • (i)
  • (iii)
  • (ii)
c.
  • (iii)
  • (i)
  • (ii)
d.
  • (i)
  • (ii)
  • (iii)

Question number: 6

» Mental Ability » Basic Algebra

MCQ▾

Question

If + stands for division; × stands for addition; stands for multiplication; ÷ stands for subtraction, which of the following equation is correct?

Choices

Choice (4) Response
a.

36+63×5÷3=24

b.

36×6+7÷26=20

c.

36÷6+3×5=45

d.

366+3×5÷3=75

Question number: 7

» Mental Ability » Basic Algebra

MCQ▾

Question

If + stands for division; × stands for addition; stands for multiplication; ÷ stands for subtraction, which of the following equation is correct?

Choices

Choice (4) Response
a.

24+5×76÷2=30

b.

24÷14+7×62=10

c.

24+5×76÷2=56

d.

24÷57+6×2=46

Question number: 8

» Mental Ability » Basic Algebra

MCQ▾

Question

Express 0.17 as a vulgar fraction.

Choices

Choice (4) Response
a.

17100

b.

161300

c.

69550

d.

121200

Question number: 9

» Mental Ability » Basic Algebra

MCQ▾

Question

Step 1: x23x2y2+x2y22x23y2+12x2y2

Step 2: (x22x2)+(3x2y2+x2y2+12x2y2)3y2

Step 3: x2+10x2y23y2

Are the above given steps a simplification of algebraic expression x2(13y2)+x(xy22x)3y(y4x2y)?

Choices

Choice (4) Response
a.

Only step 1 is correct

b.

Only step 1 and 2 are correct

c.

No

d.

Yes

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