Everyday Mathematics (IMO Mathematics Olympiad Class 9): Questions 74  78 of 99
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Question number: 74
» Everyday Mathematics
Question
A rectangular park 60 m long and 40 m wide has concreate crossroads running in the middle of the park and rest of the park has been used as a lawn. If the area of the lawn is 2109 sq. m, then what is the width of the road?
Choices
Choice (4)  Response  

a.  6 m 

b.  3 m 

c.  4 m 

d.  5 m 

Question number: 75
» Everyday Mathematics
Question
A student was asked to divide a number by 8 and add 16 to the quotient. He, however, first added 16 to the number and then divided it by 8, getting 160 as the answer. The correct answer should have been________
Choices
Choice (4)  Response  

a.  174 

b.  162 

c.  154 

d.  198 

Question number: 76
» Everyday Mathematics
Question
Reema bought pens at Rs. 2.60 each and y getting cards at 80 paise each. If the pens cost Rs. 12 more than the cards, the equation involving x and y are ________
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 77
» Everyday Mathematics
Question
P, Q and R enter into partnership by making investments in the ratio . After a year, R invests another Rs. 452500 while P withdrew Rs. 65400. The ratio of investments then changes to . How much did R invest initially?
Choices
Choice (4)  Response  

a.  Rs. 228900 

b.  Rs. 228990 

c.  Rs. 225899 

d.  Rs. 224516 

Question number: 78
» Everyday Mathematics
Question
Tea worth Rs. 126 per kg and Rs. 135 per kg are mixed with a third variety in the ratio . If the mixture is worth Rs. 153 per kg, the price of the third variety per kg will be
Choices
Choice (4)  Response  

a.  Rs. 169.50 

b.  Rs. 180 

c.  Rs. 170 

d.  Rs. 175.50 
