Mental AbilityBasic Arithmetic (NCO Cyber Olympiad (SOF) Class 7): Questions 1  8 of 122
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Question number: 1
» Mental Ability » Basic Arithmetic
Question
A man sold a radio for Rs. 1800 and gained 15%. The radio was bought for
Choices
Choice (4)  Response  

a.  Rs. 1530 

b.  Rs. 1565.21 

c.  Rs. 2000 

d.  Rs. 1782 

Question number: 2
» Mental Ability » Basic Arithmetic
Question
600 liters of milk is divided in two parts having ratio X: 35, if the first part is 400 liters, find x.
Choices
Choice (4)  Response  

a.  50 

b.  55 

c.  70 

d.  57 

Question number: 3
» Mental Ability » Basic Arithmetic
Question
Find three numbers in the ratio 2: 3: 5 such that the sum of their squares is 608.
Choices
Choice (4)  Response  

a.  6: 9: 15 

b.  8: 12: 20 

c.  16: 24: 40 

d.  Question does not provide sufficient data or is vague 

Question number: 4
» Mental Ability » Basic Arithmetic
Question
If = 3125, then n=?
Choices
Choice (4)  Response  

a.  6 

b.  2 

c.  8 

d.  20 

Question number: 5
» Mental Ability » Basic Arithmetic
Question
In an examination, one should get 16 % of the maximum marks to pass. A student obtains 100 marks and declared failed by 32 marks. The maximum marks are
Choices
Choice (4)  Response  

a.  1008 

b.  640 

c.  500 

d.  825 

Question number: 6
» Mental Ability » Basic Arithmetic
Question
Three friends divide rupees 300 among themselves in the ratio . The share of the first friend is________.
Choices
Choice (4)  Response  

a.  Rs. 192 

b.  Rs. 148 

c.  Rs. 288 

d.  Rs. 163.63 

Question number: 7
» Mental Ability » Basic Arithmetic
Question
Find four numbers in the ratio 1: 2: 2: 4 such that the sum of their squares is 625.
Choices
Choice (4)  Response  

a.  5 

b.  4 

c.  6 

d.  2 

Question number: 8
» Mental Ability » Basic Arithmetic
Question
Three friends divide rupees 500 among themselves in the ratio . The share of the second friend is________.
Choices
Choice (4)  Response  

a.  Rs. 160 

b.  Rs. 192 

c.  Rs. 288 

d.  Rs. 148 
