KVPY StreamSA (Class 11) Math: Questions 186  191 of 265
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Question number: 186
» 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: 187
» 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: 188
» 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: 189
» Basic Mathematics » Geometry » Circle and Properties
Question
The lengths of two parallel chords of a circle are 8 cm and 6 cm. If the smaller chord is at distance 4 cm from the centre, then the distance of the other chord from the centre is –
Choices
Choice (4)  Response  

a.  3 

b.  5 

c.  4 

d.  2 

Question number: 190
» Sets, Relations and Functions » Functions and Composition
Question
If ; than value of is –
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 191
» Basic Mathematics » Algebra » Simplifying Expressions
Question
For which, statement: “ is prime” is not true?
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 

