RRB ASSISTANT 23 SEPT REVIEW

Number Series Asked in (1st Slot) IBPS RRB Office Assistant Prelims Held on 23rd Sep 2017 (BASED ON MEMORY):

1). 9, 11, 20, 48, 113, ?
Logic: Difference 13+1, 23+1,33+1, 43+1

Answer: 239

2). 6, 19, 14, 27, 22, 35, ?
Logic: +13, -5, +13, -5, +13, -5
Answer: 30

3). 3, 7, 29, 175, 14011, ?
Logic: ×2+1, ×4+1, ×6+1, ×8+1, ×10+1
Answer: 140111

4). 186, 176, 196, 156, ?, 76
Logic: -10, +20, -40, +80, -160
Answer: 236

5). 1.3, 3.7, 6.6, 10, 13.9
Logic: Difference of Difference 0.5, 0.5, 0.5, 0.5
Answer: 18.3

Quantitative Aptitude 

1. If the respective ratio between speed of the boat downstream and that upstream is 7:5 , what is the respective ratio between speed of the boat in still water and the speed of the current ?

2. Mr.Dubey distributed his retirement benifit equality among his wife and only son. From this respective shares, his wife and son spent 20% and 40% respectively on buying clothes and saved the remaining amount. If the difference between the amount saved by them was Rs. 4000, What was the retirement that he got ?

3. The sum of circumference and diameter of a circle is equal to the perimeter of a square whose side is 29m. What is area of the circle ?

4. The average weight of a group of four boys is 65 kg, If a fifth boy weighing 55kg join this group, what would be the new average weight of all 5 boys.

5. Sahil brought a refrigerator for Rs. 4600/- and spent Rs. 2500/- for repairing . At what price should he sell the refrigerator so as to earn a profit of 15% ?

source -internet

Best Wishes!!!!!!