# Quantitative Aptitude Quiz for RRB Office Assistant prelim

Quantitative aptitude is an important part for every compititive exams . In this section you can gain maximum score which will help you to crack any compititive examination . Practice daily and boost up your speed and accuracy. Here we provide Quantitative aptitude quiz for Rrb assistant prelim exam.

Directions (Q. 1-5): In the following number series Only one number is wrong. Find out the wrong number.

Q1.   3    5     13      120      489  12231

1) 13    2) 120      3)489      4) 12231     5)3

Q2.     520       641    472     700    408     769

1)641.       2)472     3)769    4) 700.      5)408

Q3.  720     4320    865    3456   1152     2304

1) 1152    2)4320  3)865   4)3456.      5) 720

Q4.  69120     6912     1152    144    36   18

1) 1152     2) 144    3)36    4)69120    5)6912

Q5.     83     81     90      62     127      10

1)90     2)62       3) 127     4) 83       5) 10

Q6. Two men undertook to do a piece of work for Rs1260. One alone could do it in 9 days, the other in 6 days, while with the assistance of a boy they finish it in 3 days. Find the share of the boy.

1)240    2)210.     3)200     4) 250        5) None of these

Q7. F ind the compound interest on a sum of ?12000 for two years at 800 pa compounded half yearly.  (approximate)

1)2140     2)2088     3)2040.      4) 2240      5)2280

Q8. Find the area of a circle whose circumference is 352 cm. ,

1)9856 sq m 2) 9586 sq m 3)9658  sq m 4) 9886 sq m     5) None of these

Q9. One year ago the ratio of Ragini’s to Yamini’s age was 2 : 3. F ive years hence this ratio would become 8 : 1 1. How old is Ragini?

1) 20 years.        2) 19 years       3) 22 years      4) 28 years 5) 18 years

Q10. A shopkeeper allows a discount of 10% on the marked  price of a commodity which he bought Rs 540. Had he sold it at the marked price, he would have made a profit of 210. What is the present selling price of the commodity?

1 )650 2) 600 3)670 4) 675 5)640