Fractions and Decimals Test

Result

Fractions and Decimals Test - 12

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Weekly Quiz Competition

Question 1
1 / -0

Which of the following is a pair of like decimals?

A
0.2010, 0.21159

B
4.260, 4.9125

C
4.19, 4.625

D
9865.4946,28.4900

Solution

Decimals having the same number of decimal places, i.e. decimals having the same number of digits on the right of the decimal point, are known as like decimals.

In Option D, both of them have same number of decimal places.

Therefore, they are like decimals.
Question 2
1 / -0

Given that P/q = s/t, which of these is true?

A
pq = st

B
ps = qt

C
pt = sq

D
p/t = s/q

Solution

P/q = s/t ⇒ pt = sq (By cross multiplication.)
Question 3
1 / -0

The fractions 2/4 ,3/6, 4/8 and 5/10 are each equivalent to 1/2. Which of the following statements represents the relation between the numerator and denominator of the fractions given above?

A
The numerator is twice the denominator.

B
The denominator is twice the numerator.

C
The numerator is 2 more than the denominator.

D
The denominator is 2 more than the numerator.

Solution

We have, 2/4 = 3/6 = 4/8 = 5/10 =1/2 which represent that denominator =2× numerator
Question 4
1 / -0

A milkman sells 42 litres of milk at Rs. 19.75 per litre to a hostel. How much money should he get from the hostel?

A
Rs.1892

B
Rs.829.50

C
Rs.165.85

D
Rs.122.50

Solution

Cost of 1 litre milk =Rs. 19.75
Cost of 42 litres milk =Rs.(19.75×42)=Rs.829.50
Question 5
1 / -0

Which of the following decimals are equal?

A
10.0101, 10.01010

B
10.101010, 01.1010000

C
0.1010, 0.1010000

D
11.011011, 11.0101

Solution

A very important property of decimals is that adding zeros after the last digit of the decimal part of any decimal number does not change the value of the decimal.

0.1010 will be equal to 0.1010000, so will be and the corresponding options will be correct.