NCO- Cyber Olympiad Class 9: Questions 21 - 26 of 410

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Question number: 21

» Mental Ability » Basic Algebra

MCQ▾

Question

The solution of the equations 5X4Y=12,4X+2Y=20 is

Choices

Choice (4) Response

a.

There is no solution

b.

X=8,Y=2

c.

X=0,Y=0

d.

X=4,Y=2

Question number: 22

» Logical and Analytical Reasoning » Logical Sequence of Words

MCQ▾

Question

Supply the right letter for the question mark (? ) in the following:

In image define the series of Alphabets letters

In Image Define the Series of Alphabets Letters

Here in image define the series of Alphabet letter find the letter for question mark

Choices

Choice (4) Response

a.

Y

b.

W

c.

L

d.

P

Question number: 23

» Mental Ability » Basic Algebra

MCQ▾

Question

When simplified and expressed with negative exponents, the expression (x+y)1(x1+y1) is equal to

Choices

Choice (4) Response

a.

x2+2x1y1+y2

b.

x2+y2

c.

x2+21x1y1+y2

d.

x1y1

Question number: 24

» Mental Ability » Basic Arithmetic

MCQ▾

Question

A bike travels 70 km from Rajkot to Jamnagar at 14 km per hour but returns the same distance at 15 km per hour. The average speed for the round trip is closest to

Choices

Choice (4) Response

a.

13 km/hr

b.

10km/hr

c.

12km/hr

d.

16km/hr

Question number: 25

» Mental Ability » Basic Algebra

MCQ▾

Question

(a+1a)=3 , then (a3+1a3) equals

Choices

Choice (4) Response

a.

18

b.

1033

c.

77

d.

33

Question number: 26

» Mental Ability » Basic Arithmetic

MCQ▾

Question

logxlogy=log(xy) Only if

Choices

Choice (4) Response

a.

xyy2=x

b.

x=y=1

c.

x=y=0

d.

x=xyy2

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