IBPS RRB 2019 Prelims Quantitative Aptitude: PO/Clerk | 16th July

IBPS RRB Quantitative Aptitude Quiz

Q1. In how many ways the letters of the word ‘TALWAR’ can be arranged such that T and R are always at end places?

Solution:

Q2. In how many different ways 4 boys can be seated among five girls around a circular table such that no two boys sit together?

Solution:

Q3. How many numbers greater than 4000 can be formed by using the digits 0, 1, 2, 3, 4 without repeating the digits?

Q4. In how many different ways four letters can be posted through five letters boxes?

Q5. How many five digits numbers divisible by ‘3’ can be formed from first five natural numbers without repetition the digits?

Q6. In a group of 6 boys and 4 girls, four children are to be selected. In how many different ways can they be selected such that at least one boy should be there?

Solution:

Q7. How many 3-digit numbers can be formed from the digits 2, 3, 5, 6, 7 and 9, which are divisible by 5 and none of the digits is repeated?

Solution:

Q8. A box contains 2 white balls, 3 black balls and 4 red balls. In how many ways can 3 balls be drawn from the box, if at least one black ball is to be included in the draw?

Solution:

Ways of drawing at least one black ball = Total no. of ways – no black ball

Q9. All possible four-digit numbers, with distinct digits are formed, using the digits {1, 3, 4, 5, 6}. How many of them are divisible by 2?

Q10. Ten points are selected on a plane, such that no three of them are collinear. How many different straight lines can be formed by joining these points?

Solution:

Directions (11-15): What should come in place of question mark (?) in the following questions?

Q11. 0.5% of 674 of 0.8% of 225 = ?

Solution:

Q12. 56% of 225 + 20% of 150 = ? – 109

Q13. 12% of 1885 = ? ÷ 6

Q14. 115% of 4880 – 85% of 1640 =?

Q15. 5.35 + 4.43 + 0.45 + 45.34 + 534 = ?

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