Mental Ability (NCO Cyber Olympiad Class 7): Questions 173  179 of 205
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Question number: 173
» Mental Ability » Basic Geometry
Question
XYZ is an isosceles triangle with XY = 12 m and, then XZ ________?
Choices
Choice (4)  Response  

a.  12 m 

b.  6 m 

c.  3 m 

d.  11 m 

Question number: 174
» Mental Ability » Basic Arithmetic
Question
What percent of is ?
Choices
Choice (4)  Response  

a.  20% 

b.  25% 

c.  0.4% 

d.  2.5% 

Question number: 175
» Mental Ability » Basic Arithmetic
Question
The present ages of three persons in proportions 3: 6: 9. Five years ago, the sum of their ages was 57. Find their present ages (in years).
Choices
Choice (4)  Response  

a.  12, 24, 36 

b.  18, 32, 15 

c.  15, 30, 45 

d.  All of the above 

Question number: 176
» Mental Ability » Basic Geometry
Question
ABC is an isosceles triangle with AB = AC and AD is altitude, then for angles
Choices
Choice (4)  Response  

a.  B ≥ C 

b.  B > C 

c.  B = C 

d.  B < C 

Question number: 177
» Mental Ability » Number Games » Number Series
Question
Two days after the day before yesterday is Wednesday, What day is today?
Choices
Choice (4)  Response  

a.  Monday 

b.  Tuesday 

c.  Sunday 

d.  Friday 

Question number: 178
» Mental Ability » Basic Arithmetic
Question
A farmer has 2 grasshoppers of the same species. The corresponding parts of the grasshopper’s bodies are proportional. The larger grasshopper has an 8 cm body and a 1.5 cm forelimb. The smaller grasshopper has a 1.2 cm forelimb. How long is the body of the smaller grasshopper?
Choices
Choice (4)  Response  

a.  10.0 cm 

b.  6.4 cm 

c.  6.0 cm 

d.  7.7 cm 

Question number: 179
» Mental Ability » Number Games » Number Series
Question
Complete the series: 2, 5, 10, 17, 26, ________
Choices
Choice (4)  Response  

a.  28 

b.  37 

c.  39 

d.  50 
