IMO Level 1 Mathematics Olympiad (SOF) Class 7: Questions 461  466 of 1012
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Question number: 461
Question
Mihika and her grandmother both had birthdays last month. The sum of their ages is 150 years. Her grandmother’s age is 5 times Mihika’s age. How old is Mihika?
Choices
Choice (4)  Response  

a.  30 years 

b.  15 years 

c.  22 years 

d.  25 years 

Question number: 462
Question
Six bells commence tolling together and toll at intervals of 2,4, 6,8, 10 and 12 seconds respectively. In 30 minutes, how many times do they toll together?
Choices
Choice (4)  Response  

a.  4 

b.  16 

c.  15 

d.  10 

Question number: 463
Question
When Sarvesh travelled 33 km he found that of the entire journey was still left. The length of the total journey is
Choices
Choice (4)  Response  

a.  132 km 

b.  99 km 

c.  66 km 

d.  100 km 

Question number: 464
Question
James earned some money. He spent of money on grocery and of money on monthly milk. Which of the following fractions represents the part of money he did not spend?
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 465
Question
Mr. Shyamal has a total of Rs. 45,000. He spends 40 % of his money on coloring his house for festivals. How many rupees does he spend on coloring his house?
Choices
Choice (4)  Response  

a.  Rs. 18000 

b.  Rs. 14500 

c.  Rs. 15000 

d.  Rs. 18500 

Question number: 466
Question
Two equal containers are filled with a mixture of juice and water. The concentration of juice in each of the containers is 30 % and 35 % respectively. What is ratio of water in both the containers respectively?
Choices
Choice (4)  Response  

a.  13: 14 

b.  4: 3 

c.  14: 13 

d.  3: 4 
