SBI PO Quantitative Aptitude Quiz: 24th April 2019

Quantitative Aptitude Quiz For SBI PO/Clerk Prelims

Q1. In a box carrying one dozen of oranges, one third have become bad. If 3 oranges are taken out from the box at random, what is the probability that at least one oranges out of the three oranges picked up is good?

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Q2. A basket contains 5 white and 9 black balls. There is another basket which contains 7 white and 7 black balls. One ball is to drawn from either of the two baskets. What is the probability of drawing a black ball?

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Q3. An urn contains 9 red, 7 white and 4 black balls. A ball is drawn at random. What is the probability that the ball drawn is not red?

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Q4. A box contains 4 green, 5 yellow and 4 white marbles. 3 marbles are drawn at random. What is the probability that all the three balls are not of same colour?

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Q5. A bag contains 4 red and 7 black balls. Two draws of three balls each are made, the ball being replaced after the first draw. What is the chance that the balls were red in the first draw and black in the second?

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Q6. A bag contains 9 red and 7 white balls. Four balls are drawn out one by one and not replaced. What is the probability that they are alternatively of different colours?

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Q7. A basket contains 5 white and 9 black balls. There is another basket which contains 7 white and 7 black balls. One ball is to drawn from either of the two baskets. What is the probability of drawing a white ball?

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Q8. 8 persons are seated at a round table. What is the probability that 3 particular persons sit together?

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Directions (9-15): What will come in place of question mark (?) in the following number series?

Q9. 35, 63, 99, 143, ?

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Q10. 26, 105, 400, 1185, ?, 2355

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Q11. 83, 87, 183, 565, ?, 11461

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Q12. 7, 23, 55, 109, 191, ?

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Q13. 234, 451, 965, 1968, 3700, ?

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Q14. 7, 9, 19, 18, 31, 27, ?

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Q15. 48, 28, 36, 70, 172, ?

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