Basic MathematicsArithmetic (KVPY StreamSA (Class 11) Math): Questions 55  59 of 83
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Question number: 55
» Basic Mathematics » Arithmetic » Rates, Speeds and Unitary Method
Question
Two workers A and B are engaged to do a piece of work. Working alone, A takes 12 hours more to complete the work than if both worked together. On the other hand, working alone, B would need 3 hours more to complete the work than if both worked together. How much time would they take to complete the job working together?
Choices
Choice (4)  Response  

a. 


b.  9 hr 

c.  8 hr 

d.  6 hr 

Question number: 56
» Basic Mathematics » Arithmetic » Ratio and Proportion
Question
I carried 500 kg of watermelon in summer by train. In the beginning, the water content was 95%. By the time I reached the destination, the water content had dropped to 92%. The reduction in the weight of the watermelon was
Choices
Choice (4)  Response  

a.  312.5 

b.  150.5 

c.  163 

d.  187.5 

Question number: 57
» Basic Mathematics » Arithmetic » Simplifying Expressions
Question
If x is real, the value of will not be less than,
Choices
Choice (4)  Response  

a.  5 

b.  8 

c.  7 

d.  6 

Question number: 58
» Basic Mathematics » Arithmetic » Rates, Speeds and Unitary Method
Question
12 women can complete a work in 5 days and 12 children take 10 days to complete a work. How many days will 3 women and 6 children take to complete the work?
Choices
Choice (4)  Response  

a.  12 

b.  8 

c.  9 

d.  10 

Question number: 59
» Basic Mathematics » Arithmetic » Simplifying Expressions
Question
If α is the root of then other root β is –
Choices
Choice (4)  Response  

a. 


b. 


c. 


d.  All a. , b. and c. are correct 
