Mental AbilityBasic Arithmetic (NCO Cyber Olympiad Class 7): Questions 1  8 of 122
Get 1 year subscription: Access detailed explanations (illustrated with images and videos) to 416 questions. Access all new questions we will add tracking exampattern and syllabus changes. View Sample Explanation or View Features.
Rs. 300.00 or
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. 1782 

b.  Rs. 1530 

c.  Rs. 1565.21 

d.  Rs. 2000 

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.  70 

c.  55 

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.  8: 12: 20 

b.  6: 9: 15 

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.  20 

b.  2 

c.  6 

d.  8 

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.  825 

b.  640 

c.  500 

d.  1008 

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. 163.63 

d.  Rs. 288 

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.  4 

b.  6 

c.  2 

d.  5 

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. 148 

c.  Rs. 288 

d.  Rs. 192 
