Test: Decimals - Telangana Police Constable MCQ

Converting 2 rupees and 5 paise to decimal
- To convert 2 rupees and 5 paise to decimal, we need to consider that 1 rupee is equal to 100 paise.
- Therefore, 2 rupees is equal to 200 paise.
- Adding 200 paise to 5 paise gives us a total of 205 paise.
- To convert paise to rupees, we divide the total paise by 100.
- Therefore, 205 paise is equal to 2.05 rupees.
- Hence, 2 rupees and 5 paise can be written as Rs 2.05 in decimal form.

The decimal form of 'seven-tenths' is 0.7 because each tenth represents 0.1, and seven tenths amount to 0.7.

• Each tenth is equal to 0.1.
• Seven tenths is calculated as 7 × 0.1.
• This results in 0.7.

• 0.1 is equivalent to 0.10, making it easier to compare.
• When comparing, the first decimal place in 0.10 is 1, while in 0.03 it is 0.
• This shows that 0.1 is greater than 0.03, hence the correct symbol is >.

Every decimal can be expressed as a fraction because decimals represent a part of a whole number. For example:

• 0.5 can be written as 1/2
• 0.25 can be written as 1/4, and
• 0.75 can be written as 3/4.

To convert meters to kilometers, divide the number of meters by 1,000, since 1 kilometer equals 1,000 meters.

For 88 meters: 88/1000 = 0.088 kilometers.

Thus, 88 meters is equivalent to 0.088 kilometers.

The correct answer is option B: 0.088 km.

Align the decimal places for addition:
0.015 + 4.250 + 12.300
Add the values:
0.015 + 4.250 = 4.265
4.265 + 12.300 = 16.565

To convert the fraction 12/100 into its decimal form, we recognise that dividing by 100 moves the decimal point two places to the left.

Starting with 12, which can be written as 12.00, shifting the decimal two places left results in 0.1200. Removing the trailing zeros gives us 0.12.

Therefore, the decimal form of 12/100 is 0.12.

Each digit after the decimal point is read individually, making it "eight point zero three six."

To determine which number is greater, we compare each digit after the decimal point.

• Starting with the tenths place:
• 6 (in 0.65) is greater than 5 (in 0.56), indicating that 0.65 is larger.
• Although the hundredths place in 0.56 is higher, the tenths place comparison already shows that 0.65 is greater.

Therefore, 0.65 is greater than 0.56.

To solve 6.7 + 2.3, follow these steps:

• First, add the tenths place:
• 7 + 3 = 10
• Carry over 1 to the units place.
• Then, add the units:
• 6 + 2 + 1 (carry) = 9

Thus, the final result is 9.0.