General Mathematics

Question: `165, 195, 255, 285, 345, (.....)`
A
`375`

B
`420`

C
`435`

D
`390`

Note: Numbers is `15` multiplied by a prime number i.e `15 xx 11, 15 xx 13, 15 xx 17, 15 xx 19, 15 xx 23` So, the next number is `15 xx 29 = 435.`
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Question: `2, 4, 12, 48, 240, (.....)`
A
`960`

B
`1440`

C
`1080`

D
`1920`

Note: Go on multiplying the given numbers by `2, 3, 4, 5, 6.` So, the correct next number is `1440`
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Question: `8, 7, 11, 12, 14, 17, 17, 22, (....)`
A
`27`

B
`20`

C
`22`

D
`24`

Note: There are two series `(8, 11, 14, 17, 20)` and `(7, 12, 17, 22)` increasing by `3` and `5` respekctively.
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Question: If each side of a square is increased by 50%, the ratio of the area of the resulting square to the area of the given square is :
A
`5 : 4`

B
`9 : 4`

C
`4 : 5`

D
`4 : 9`

Note: Not available
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Question: The length of a blackboard is 8 cm more than its breadth. If the length is increased by 7 cm and breadth is decreased by 4 cm, the area remains the same. The length and breadth of the black board (in cms) will be :
A
`28, 20`

B
`34, 26`

C
`40, 32`

D
`56, 48`

Note: Not available
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Question: If the diagonal of a square is doubled to make the diagonal of another square the area of the new square will :
A
become two-fold

B
become three-fold

C
become four-fold

D
remain the same

Note: Not available
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Question: The area of a rectangle is equal to the area of a circle. what is the length of the rectangle ? To find out the answer, which of the following informations given in statements P and Q is/are sufficient. P: The diameter of the circle is 28 cm. Q: The breadth of the rectangle is 22 cm.
A
Only P is sufficient

B
Only Q is sufficient

C
Both P and Q are needed

D
Even both P & Q are not sufficient

Note: Not available
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Question: A hall 20 m long and 15 broad is surround by a verandah of uniform width of 2.5 m. The cost of flooring the verandah at Rs. 3.50 per square metre is :
A
Rs. 500

B
Rs. 600

C
Rs. 700

D
Rs. 800

Note: Not available
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Question: The number of marble slabs of size 20 cm`xx` 30 cm required to pave the floor of a square room of side 3 metres, is :
A
100

B
150

C
225

D
25

Note: Not available
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Question: If each side of a square is increased by 25%, its area is increased by :
A
25%

B
50%

C
40.5%

D
56.25%

Note: Not available
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Question: `165, 195, 255, 285, 345, (.....)`

Question: `2, 4, 12, 48, 240, (.....)`

Question: `8, 7, 11, 12, 14, 17, 17, 22, (....)`

Question: If each side of a square is increased by 50%, the ratio of the area of the resulting square to the area of the given square is :

Question: The length of a blackboard is 8 cm more than its breadth. If the length is increased by 7 cm and breadth is decreased by 4 cm, the area remains the same. The length and breadth of the black board (in cms) will be :

Question: If the diagonal of a square is doubled to make the diagonal of another square the area of the new square will :

Question: The area of a rectangle is equal to the area of a circle. what is the length of the rectangle ? To find out the answer, which of the following informations given in statements P and Q is/are sufficient. P: The diameter of the circle is 28 cm. Q: The breadth of the rectangle is 22 cm.

Question: A hall 20 m long and 15 broad is surround by a verandah of uniform width of 2.5 m. The cost of flooring the verandah at Rs. 3.50 per square metre is :

Question: The number of marble slabs of size 20 cm`xx` 30 cm required to pave the floor of a square room of side 3 metres, is :

Question: If each side of a square is increased by 25%, its area is increased by :