# Decimals (IMO- Mathematics Olympiad (SOF) Class 6): Questions 64 - 70 of 81

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## Question number: 64

» Decimals

MCQ▾

### 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

MCQ▾

### 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

MCQ▾

### 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

MCQ▾

### 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

MCQ▾

### 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

MCQ▾

### 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.

## Question number: 70

» Decimals

MCQ▾

### Question

The product of two numbers is 238.239. If one of them is 12.85, then the other number is

### Choices

Choice (4) Response

a.

18.54

b.

18.46

c.

21.54

d.

19.28

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