Decimals (IMO Mathematics Olympiad Class 6): Questions 63  69 of 81
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Question number: 63
» Decimals
Question
Mahi bought 6 kg 150 g of sugar, 8 kg 500 g of tea and 9 kg 80 g of salt. The total weight of all the stuff she bought is
Choices
Choice (4)  Response  

a.  22.850 kg 

b.  23.370 kg 

c.  23.530 kg 

d.  23.730 kg 

Question number: 64
» Decimals
Question
The sum of two numbers is 31.021. If one of them is 11.56, then the other number is
Choices
Choice (4)  Response  

a.  19.561 

b.  19.461 

c.  17.461 

d.  18.641 

Question number: 65
» Decimals
Question
Rahul bought 4 kg 90 g of apples, 2 kg 60 g of grapes and 5 kg 300 g of mangoes. The total weight of all the fruits he bought is
Choices
Choice (4)  Response  

a.  11.000 kg 

b.  11.450 kg 

c.  11.350 kg 

d.  11.250 kg 

Question number: 66
» Decimals
Question
The decimal form of is
Choices
Choice (4)  Response  

a.  5.76 

b.  7.56 

c.  7.50 

d.  6.75 

Question number: 67
» Decimals
Question
The ratio of hydrogen and oxygen in water is 3: 2. If the weight of oxygen in the water is 15.2 gm, then weight of hydrogen in it is
Choices
Choice (4)  Response  

a.  22.8 gm 

b.  21.5 gm 

c.  28.5 gm 

d.  23.2 gm 

Question number: 68
» Decimals
Question
The ratio of copper and zinc in an alloy is 9: 5. If the weight of zinc in the alloy is 9.5 gm, then weight of copper in it is
Choices
Choice (4)  Response  

a.  17.4 gm 

b.  17.2 gm 

c.  17.5 gm 

d.  17.1 gm 

Question number: 69
» Decimals
Question
The fractional number corresponding to the following number “9 hundredths  9 tenths + 9 tens  9 ones” is ________.
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 

