Everyday Mathematics (IMO Mathematics Olympiad Class 10): Questions 11  15 of 67
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Question number: 11
» Everyday Mathematics
Question
Kamla got married 6 years ago. Today her age is times her age at the time of marriage. Her son’s age is times her age. Her son’s age is ________
Choices
Choice (4)  Response  

a.  5 years 

b.  3 years 

c.  4 years 

d.  2 years 

Question number: 12
» Everyday Mathematics
Question
2 men and 7 boys can do a piece of work in 14 day, 3 men and 8 boys can do the same in 11 days. 8 men and 6 boys can do 3 times the amount of this work in ________
Choices
Choice (4)  Response  

a.  18 days 

b.  36 days 

c.  24 days 

d.  21 days 

Question number: 13
» Everyday Mathematics
Question
P is twice good a workman as Q and therefore is able to finish a job in 30 days less than Q. Working together they can do it in ________ days.
Choices
Choice (4)  Response  

a.  40 

b.  50 

c.  20 

d.  30 

Question number: 14
» Everyday Mathematics
Question
One year ago the ratio between Laxman’s and Gopal’s salary was . The ratios of their individual salaries between last year’s and this year’s salaries are and respectively. At present, the total of their salary is Rs. 4160. The salary of Laxman now, is ________
Choices
Choice (4)  Response  

a.  Rs. 3120 

b.  Rs. 1600 

c.  Rs. 2560 

d.  Rs. 1040 

Question number: 15
» Everyday Mathematics
Question
P, Q and R start at the same time in the same direction to run around a circular stadium. P completes a round in 280 seconds, Q in 310 seconds and R in 200 seconds, all starting at the same point. After what time will they meet again at the starting point?
Choices
Choice (4)  Response  

a.  846 minutes 15 seconds 

b.  126 minutes 18 seconds 

c.  445 minutes 55 seconds 

d.  723 minutes 20 seconds 
