Important Questions Test: Decimals - SSC CGL MCQ

Every fraction with a denominator of 10 can be easily expressed in decimal form.

Calculation:

• 200 + 30 + 5 + 2/10 + 9/100 = 200 + 30 + 5 + 0.2 + 0.09
• 200 + 30 + 5 + 0.2 + 0.09 = 235.29

Final Answer:

The given expression as a decimal is 235.29

Given numbers:

• 0.29
• 0.36

Calculation:

• Add the two numbers: 0.29 + 0.36 = 0.65

Answer: 0.65

Decimal Representation of 60 + 1/10 + 3/100

• Step 1: 1/10 + 3/100 = 10/100 + 3/100 = 13/100
• Step 2: Convert the fraction 13/100 to a decimal by dividing 13 by 100: 13 ÷ 100 = 0.13
• Step 3: Add the decimal 0.13 to the whole number 60: 60 + 0.13 = 60.13

Therefore, the decimal representation of 60 + 1/10 + 3/100 is 60.13, which is option B.

• 0.7 + 0.08 = 0.78
• To add decimal numbers, align the decimal points and add as you would with whole numbers.
• Add 0.7 and 0.08:
• = 0.7 + 0.08 = 0.78
• The correct answer is 0.78 (option A)

1 divided by 4 equals 0.25. So 1/4 is equal to 0.25.

To convert the phrase 'Thirty and one-tenth' into a decimal, break it down into its components:

• Thirty is 30
• One-tenth is 0.1

Adding these together gives:

30 + 0.1 = 30.1

Therefore, the correct answer is D, 30.1.

To express 2 rupees and 50 paise as a decimal:

• 1 rupee = 100 paise.
• 50 paise = 0.50 rupees.
• Therefore, 2 rupees and 50 paise = Rs 2.50.

• Step 1: Understand that 'six-tenths' means 6 parts out of 10 parts.
• Step 2: To convert this fraction to a decimal, divide the numerator (6) by the denominator (10).
• Step 3: 6 ÷ 10 = 0.6
• Step 4: Therefore, the decimal form of 'six-tenths' is 0.6

The number 0.01 is less than 0.3.

Therefore, the correct answer is B: <.

The decimal notation for one-hundredth is 0.01.

This means it is one part of one hundred equal parts.

Since, 0.023 is greater than 0.02 and less than 0.03. Thus it lies between 0.02 and 0.03.

To convert 40 + 2 + 3/10 into a decimal:

• Combine the whole numbers: 40 and 2 to get 42.
• Convert 3/10 to 0.3.
• Add them together: 42 + 0.3 equals 42.3.

Thus, the decimal form is 42.3.

'Eleven point two three five' translates to the number 11.235. This is because:

• 'eleven' represents the whole number part.
• 'point' indicates the start of the decimal part.
• 'two' is in the tenths place.
• 'three' is in the hundredths place.
• 'five' is in the thousandths place.

Therefore, the correct decimal form is 11.235.

- A fraction with a denominator of 100 can be easily converted to decimal notation.
- To convert, divide the numerator by 100. For example, 75/100 = 0.75.
- Decimal notation can also be converted back to a fraction with a denominator of 100 by multiplying the decimal by 100 and using the result as the numerator.

To convert 300 + 20 + 3 + 4/10 + 5/100 into a decimal:

• Combine the whole numbers and fractions: 300 + 20 + 3 = 323.
• Add the fractions: 4/10 = 0.4 and 5/100 = 0.05.
• Sum: 323 + 0.4 + 0.05 = 323.45.

Therefore, the correct decimal is 323.45.

• Convert the fractions to decimals:
  • 7/10 = 0.7
• Add all the numbers together:
  • 300 + 5 + 0.7 = 305.7
• Therefore, the correct answer is 305.7.

To write 70 + 2/10 + 6/100 as a decimal:

• 70 is the whole number part.
• 2/10 is equal to 0.2.
• 6/100 is equal to 0.06.

Combine these to get 70.26.

• Given numbers: 2.66 and 1.85
• Adding the numbers: 2.66 + 1.85 = 4.51

• Answer:
• C: 4.51

The correct solution is:

• Calculate the sum of 1.54 and 1.80.
• The result is 3.34.
• Thus, the correct answer is C.