Mental Ability (NCO Cyber Olympiad Class 7): Questions 97  102 of 205
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Question number: 97
» Mental Ability » Basic Arithmetic
Question
6 children and 10 men completed a certain piece of work in 12 days. Each children takes twice the time taken by a man to finish the work. In how many days will 10 men finish the same work?
Choices
Choice (4)  Response  

a.  8 

b.  15.6 

c.  12.5 

d.  9 

Question number: 98
» Mental Ability » Basic Arithmetic
Question
Convert the 0.25 into vulgar fractions
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 99
» Mental Ability » Basic Arithmetic
Question
A train 360 m long is running at a speed of . In what time will it pass a bridge 140 m long?
Choices
Choice (4)  Response  

a.  48 sec 

b.  45 sec 

c.  40 sec 

d.  42 sec 

Question number: 100
» Mental Ability » Basic Statistics
Question
Match the reciprocal of each of the following in exponential form:ListⅠ  ListⅡ 
(A)
 (i)

(B)
 (ii)

(C)
 (iii)

(D)
 (iv)

Choices
Choice (4)  Response  

 
a. 


b. 


c. 


d. 


Question number: 101
» Mental Ability » Basic Geometry
Question
PQR is an isosceles triangle with and PS is altitude, then
Choices
Choice (4)  Response  

a.  PS = PQ 

b.  PR = PQ 

c.  PS = PR 

d.  PS = QR 

Question number: 102
» Mental Ability » Basic Arithmetic
Question
Which of the following can be the exact multiple of 2?
Choices
Choice (4)  Response  

a.  27 

b.  15 

c.  63 

d.  12 
