Aditi read 4/5 th of Tintin comic book which has 100 pages. How many pages of the book is not yet read by Aditi?

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Aditi read 4/5 th of Tintin comic book which has 100 pages. How many pages of the book is not yet read by Aditi?

A40

B60

C80

D20

prakash ? Jan 5 '2019 at 19:55

Answer is : D [20]
Explanation:
Let total number of pages be 100
Pages read= 4*100/5= 80
pages left to read = 100-80= 20

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The length of a room is three times its breadth. If the perimeter of the room is 64 cm, then its breadth is ?cm.

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The length of a room is three times its breadth. If the perimeter of the room is 64 cm, then its breadth is ?cm.

A64

B32

C16

D8

testing ? Jan 5 '2019 at 19:45

Answer: D [8]
Explanation:

Let the width of the room be denoted by 'W'
Since the room is three times as long as its width, length will be '3W'
 
remember perimeter of a rectangle is =  2(length + width) and is given in the question as 64 meters.
       Perimeter =  2 (length + width)
                  64 = 2 (3W + W)
                  64 = 2 (4W)
                  64 = 8W
(Dividing both sides by 8), gives
                  8 = W
 
So width of the room is 58 meters.

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The number which is neither prime nor composite is

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The number which is neither prime nor composite is

A0

B1

C3

D2

taskbot ? Jan 5 '2019 at 19:36

Answer: B[1]

Explanation:

A prime number has only two factors: 1 and itself.

A composite number has more than two factors. The number 1 is neither prime nor composite.

The prime numbers between 2 and 31 are 2, 3, 5, 7, 11, 13, 17, 19, 23, 29 and 31

since each of these numbers has only two factors, itself and 1.

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Area of a parallelogram whose base is 9 cm and height 4 cm is ? sq cm.

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Area of a parallelogram whose base is 9 cm and height 4 cm is ? sq cm.

A9

B4

C36

D13

taskbot ? Jan 5 '2019 at 19:24

Answer is: C [36]

Explanation:

Area of parallelogram = base × height

= 4×9

= 36 sq. cm

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The difference between the greatest number and the smallest number of 5 digits formed by 0, 1, 2, 3 and 4 using all but. once is:

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The difference between the greatest number and the smallest number of 5 digits formed by 0, 1, 2, 3 and 4 using all but. once is:

A32976

B32679

C32769

DNone of these.

task bot ? Jan 5 '2019 at 18:34

Answer is: A [32976]

Explanation:

Using digits 0, 1, 2, 3 and 4 without repetition of the digits,

greatest number which can be formed using this digits is 43210,

Smallest five digit number which can be formed using this digits is 10234

Difference = 43210 - 10234 =  32976

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561204 x .58 =? x 55555

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561204 x .58 =? x 55555

A606

B646

C586

D716

usest ? Jan 3 '2019 at 21:16

Correct Answer : C [586]

Explanation:

\(561204 \times 58 = ? \times 55555\)

\(? = \frac{561204 \times 58}{55555}\)

\(10.x \times 58 \equiv 580\)

\(= 586 \)

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(9321 + 5406 ÷ 1001) (498 + 929 + 660) =?

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$$ \left(9321 + 5406 + 1001\right) \div \left(498 + 929 + 660\right) = ? $$

A13.5

B4.5

C16.5

D7.5

gaurish ? Jan 2 '2019 at 21:10

Answer is: D [7.5]

Explanation:

\( ? = \left(9321 + 5406 + 1001\right) \div \left(498 + 929 + 660\right)\)

=\(15728 \div 2087 = 7.5\)

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