Decimals Test

Result

Decimals Test - 4

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Weekly Quiz Competition

Question 1
1 / -0

How is 38.2 written in the place value table?

A
3 ones, 8 tens and 2 ones

B
3 tens, 8 ones and 2 ones

C
3 ones, 8 tens and 2 one-tenths

D
3 tens, 8 ones and 2 one-tenths

Solution

38.2 can be written in place value tables as 3 tens, 8 ones and 2 one-tenths.

Tens Ones . One-Tenths

3 8 . 2
Question 2
1 / -0

87 mm expressed in cm will be

A
87 cm

B
0.87 cm

C
8.7 cm

D
87.7 cm

Solution

We know that
1 centimeter (cm) = 10 millimeter (mm)
∴10 mm = 1 cm

or 1 mm = cm

87 mm = cm

= cm

= 8.7 cm
Question 3
1 / -0

The length of a wire is 9 cm 5 mm. What will be its length in cm?

A
90.5 cm

B
0.95 cm

C
95 cm

D
9.5 cm

Solution

Given length of wire = 9 cm 5 mm
we know
1 cm = 10 mm
∴ 10 mm = 1 cm

1 mm = cm

∴5 mm = cm
= cm

= 0.5 cm
∴Length of wire in cm = 9 cm + 0.5 cm = 9.5 cm.
Therefore, 9 cm 5 mm in cm is 9.5 cm
Question 4
1 / -0

Which of the following fractions is the same as the decimal 3.24?

A

B

C

D

Solution

3.24 =
Or
Question 5
1 / -0

Which of the following values is the greatest?

1.09, 1.093, 1.009, 1.003

A
1.093

B
1.09

C
1.009

D
1.003

Solution

1.09 - One ones and nine hundredths
1.093 - One ones, nine hundredths and three thousandths
1.009 - One ones and nine thousandths
1.003 - One ones and three thousandths
∴Out of 1.09, 1.093, 1.009 and 1.003, 1.093 is the greatest number.
Question 6
1 / -0

Which of the following numbers is smaller than 1.490?

A
1.494

B
1.940

C
1.049

D
1.491

Solution

Given number = 1.490 = One ones, four-tenths and nine hundredths
The number smaller than 1.490 is 1.049.
1.049 - One ones, 4 hundredths and 9 thousandths
Question 7
1 / -0

Which of the following statements is false?

A
0.05 < 0.5

B
1.23 > 1.2

C
0.3 < 0.4

D
0.07 < 0.02

Solution

(i) 0.05 < 0.5 (True)
In this case 0.5 has 5 at tenths place.
0.05 has 5 at hundredths place
so decimal with tenths place as 5 is bigger
∴ 0.05 < 0.5

(ii) 1.23 > 1.2 (True)
In this L.H.S. is 1.23
2 is at tenths place and 3 is at hundredths place.
R.H.S. is 1.2
2 is at tenths place and 0 is at hundredths place.
∴ 1.23 > 1.2

(iii) 0.3 < 0.4 (True)
L.H.S is 0.3 and 3 is at tenths place
R.H.S is 0.4 and 4 is at tenths place.
∴ 0.3 < 0.4

(iv) 0.07 < 0.02 is (False)
L.H.S is 0.07 and 7 is at hundredths place
R.H.S is 0.02 and 2 is at hundredths place
we know 7>2
∴0.07 > 0.02
But given 0.07 < 0.02.
∴ it is false
Question 8
1 / -0

Which of the following decimals is bigger than 33.333?

A
33.033

B
33.303

C
33.334

D
33.332

Solution

33.333 is given number
3 tens 3 ones 3 tenths 3 hundredths 3 thousandths
33.334 is greater than 33.333
as 4 > 3 and 4 is at thousandth place.
∴33.334 > 33.333
Question 9
1 / -0

Imran has apples, grapes and oranges weighing 500 g, 250 g and 700 g, respectively. What is the total weight of these fruits?

A
14.50 kg

B
145.0 kg

C
0.1450 kg

D
1.450 kg

Solution

Weight of apples = 500 g
Weight of grapes = 250 g
Weight of oranges = 700 g
Total weight = 500 g + 250 g + 700 g = 1450 g
1 kg = 1000 g

1 g = kg

1450 g = kg = 1.450 kg
Question 10
1 / -0

Which of the following expresses 5 kg 9 g as kg using decimals?

A
5.900 kg

B
5.009 kg

C
50.09 kg

D
500.9 kg

Solution

1 kg = 1000 g

1 g = kg

5 kg 9 g = 5009 g = kg = 5.009 kg
Question 11
1 / -0

A man walked 2 km towards north and then walked 200 m towards west. What is the total distance covered by him (in km)?

A
22.000 km

B
2.200 km

C
0.220 km

D
220.000 km

Solution

Distance 1 (D₁) = 2 km
Distance 2 (D₂) = 200 m
Total distance = D₁ + D₂
1 km = 1000 m

1 m = km

200 m = km = 0.200 km

Total distance = 2 km + 0.200 km = 2.200 km
Question 12
1 / -0

Raj spent Rs. 8.50 on a pen and Rs. 3.25 on a pencil. How much money did she spend in total?

A
Rs. 12.00

B
Rs. 11.50

C
Rs. 11.25

D
Rs. 11.75

Solution

Money spent on pen = Rs. 8.50
Money spent on pencil = Rs. 3.25
Total money spent = Rs. 8.50 + Rs. 3.25 = Rs. 11.75
Question 13
1 / -0

Anuj's mother gave him Rs. 18.50 and his father gave him Rs. 36.80. What is the total amount given to Anuj by his parents?

A
Rs. 54.13

B
Rs. 55.13

C
Rs. 54.30

D
Rs. 55.30

Solution

Money given by mother = Rs. 18.50
Money given by father = Rs. 36.80
Total money given = Rs. 18.50 + Rs. 36.80
= Rs. 55.30
Question 14
1 / -0

0.007 + 0.07 + 0.700 + 7.007 = ?

A
7.784

B
7.721

C
7.714

D
7.777

Solution

0.007 + 0.07 + 0.700 + 7.007 = 7.784
Question 15
1 / -0

Geetu walked 2 km 35 m in the morning and 1 km 7 m in the evening. How much total distance did she walk?

A
3.105 km

B
3.042 km

C
3.112 km

D
3.42 km

Solution

Distance walked in the morning = 2 km 35 m = 2.035 km {1 km = 1000 m}
Distance walked in the evening = 1 km 7 m = 1.007 km {1 km = 1000 m}
Total distance walked = 2.035 km + 1.007 km = 3.042 km