Mental Ability-Basic Algebra (NCO- Cyber Olympiad Class 9): Questions 43 - 49 of 101

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Question number: 43

» Mental Ability » Basic Algebra

MCQ▾

Question

Trushna cut a cake in two equal parts and one of these two pieces is again cut into equal parts. Each small part is of 40 grams. If there are eight parts of the whole cake, what was the weight of the original cake?

Choices

Choice (4) Response

a.

450 grams

b.

400 grams

c.

560 grams

d.

620 grams

Question number: 44

» Mental Ability » Basic Algebra

MCQ▾

Question

If (p-5) is factor of p2q+pq-q , find the value of q.

Choices

Choice (4) Response

a.

-30

b.

30

c.

-29

d.

29

Question number: 45

» Mental Ability » Basic Algebra

MCQ▾

Question

If (a-2) is factor of a2x + 4ax-1 , find the value of a.

Choices

Choice (4) Response

a.

17

b.

15

c.

16

d.

112

Question number: 46

» Mental Ability » Basic Algebra

MCQ▾

Question

What is equivalent to (15abc2)(2a3b4) ?

Choices

Choice (4) Response

a.

20a5b9c

b.

30a4b5c2

c.

a5b9

d.

10abc

Question number: 47

» Mental Ability » Basic Algebra

MCQ▾

Question

If x+1x=3 , find the value of x6+1x6

Choices

Choice (4) Response

a.

322

b.

324

c.

323

d.

325

Question number: 48

» Mental Ability » Basic Algebra

MCQ▾

Question

(ab)(a+b)(a2+b2) is a factorization product of

Choices

Choice (4) Response

a.

(a4b4)

b.

(a6b6)

c.

(a7b7)

d.

(a5b5)

Question number: 49

» Mental Ability » Basic Algebra

MCQ▾

Question

Arpna cut a cake in two equal parts and one of these two pieces is again cut into equal parts. Each small part is of 20 grams. If there are seven parts of the whole cake, what was the weight of the original cake?

Choices

Choice (4) Response

a.

280 grams

b.

240 grams

c.

120 grams

d.

140 grams

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