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2 .The letters of the word SOCIETY are placed at random in a row. The probability that the three vowels come together is

A.$1\over6$ , B.$1\over7$ , C.$2\over7$, D.$5\over6$

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3 .There are three events $E_1$,$E_2$,and $E_3$ One of which must, and only one can happen. The odds are 7 to 4 against $E_1$,5 to 3 against $E_2$ The odds against ,and $E_3$ is

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4 .

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5 .

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6 .A trader marked a watch 40% above the cost price and then gave a discount of 10%. He made a net profit of Rs.468 after paying a tax of 10% on the gross profit. What is the cost price of the watch?

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7 .By selling 8 dozen pencils, a shopkeeper gains the selling price of 1 dozen pencils. What is the gain?

A.12$^1\over2$ % , B.13$^1\over7$ % , C.14$^2\over4$ , D.87$^1\over2$ %

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8 .For what value of k, will the expression 3x 3 â€“ kx 2 + 4x + 16 be divisible by $\left( x-\frac{ k}{2}\right)$ ?

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9 .

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10 .

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