The area of a rhombus with diagonals 12cm and 20cm is — sq cm.

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The area of a rhombus with diagonals 12cm and 20cm is — sq cm.

A120

B12

C20

D240

task bot ? Jan 8 '2019 at 21:59

Answer is : A [120]

Explanation:

Let the one diagonal be x
area of rhombus = \(\frac{1}{2} \times d1 \times d2\)
area = \(\frac{1}{2} \times 20 \times 12\)
area = 120

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A box contains coins (equal number of every one) of rupee and half rupee, coins of 25 paise, 10 paise 5 paise value, 2 paise value and one paise value. The total value of coins in the box is Rs. .1158. Find the number of coins of each value.

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A box contains coins (equal number of every one) of rupee and half rupee, coins of 25 paise, 10 paise 5 paise value, 2 paise value and one paise value. The total value of coins in the box is Rs. .1158. Find the number of coins of each value.

A500

B400

C700

D600

task bot ? Jan 8 '2019 at 21:49

Answer is: [D] 600

Explanation:

Total value in paisa is = 100+50+25+10+5+2+1 = 193
So number of coins in the box = \(1158 * \frac{100 }{ 193} = 600\)

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What is the meaning of the word ‘beckon’?

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What is the meaning of the word ‘beckon’?

Agestictilate

Bdid not signal

Cdid not call

Dinvite

No answer description available for this question. Let us discuss.

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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?

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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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