Quant Test for IBPS PO 2018 Prelim Exam Set – 25

Directions(1-5): Find the odd number of the following series.

1. 28,60,124,221,348,508
   221
   348
   20
   28
   508
   Option A
   28+16*2= 60
   60+16*4 = 124
   124+16*6= 220
   220+16*8 = 348
   348 + 16*10 = 508

    

2. 61,66,73,84,96,114
   61
   114
   96
   84
   66
   Option C
   61+5 = 66
   66+7 = 73
   73+11 = 84
   84+13 = 97
   97+17 = 114

    

3. 11,25,53,99,151,221
   53
   11
   25
   221
   99
   Option E
   11+7*2 = 25
   25+7*4 = 53
   53+7*6 = 95
   95+7*8 = 151
   151+7*10 = 221

    

4. 32,45,60,81,104,133
   45
   60
   32
   81
   133
   Option B
   32+13 = 45
   45+17 = 62
   60+19 = 81
   81+23 = 104
   104+29 = 133

    

5. 37,48,81,138,213,312
   213
   312
   48
   138
   37
   Option D
   37+11*1 = 48
   48+11*3 = 81
   81+11*5 = 136
   136+11*7 = 213
   213+11*9 = 312

    

6. The cost price of an article A is 30% more than the selling price of article B and selling price of A is 80% more than the price of article B. If selling price of article A is 50% more than the selling price of article B then the selling price of article B then the cost price of article A is what percentage more or less than the cost price of article B?
   44%
   50%
   62%
   40%
   56%
   Option E
   Let the cost price of B be Rs. x and selling price of B be Rs. y.
   Selling price of A = 9x/5 and cost price of B = 13y/10
   Now, 9x/5 = 150% of y
   => y = 6x/5 Cost price of A = 39x/25
   Ratio of cost price of B : cost price of A = x : 39x/25
   = 25:39
   Required% = 14/25*100 = 56%

    

7. A jar contains a mixture of two liquids A and B in the ratio 4 : 1. When 10 litres of the mixture is taken out and 10 litres of liquid B is poured into the jar, the ratio becomes 2 : 3. How many litres of liquid A was contained in the jar?
   5 litres
   25 litres
   10 litres
   16 litres
   20 litres
   Option D
   Let quantity of A & B be 4x & x.
   According to the question, [4x − 10× 4/5]/[x − 10× 1/5 + 10] = 2/3
   =>[ 4x – 8]/[ x + 8] = 2/3
   => 12x – 24 = 2x + 16
   => 10x = 40
   =>x = 4
   Required answer = 4x = 4 × 4 = 16 litres

    

8. A and B entered into a partnership, investing Rs. 10000 and Rs. 15000 respectively. After 4 months, ‘A’ invested Rs. 5000 more, while B withdraws Rs. 5000. After 4 months more, C joins the business with a capital of Rs. 16,000. After a year, they obtained a profit of Rs. 11830. What is B’s share in the profit?
   4620
   4550
   3260
   5550
   4000
   Option B
   (A’s profit) : (B’s profit) : (C’s profit)
   = (10000 × 4 + 15000 × 8) : (15000 × 4 + 10000 × 8) : (16000 × 4)
   = 40 : 35 : 16
   B’s profit = 35/91 ×11830 = 4550

    

9. Of an adult population in a certain city, 52% of men and 28% of women are married. If no man marries more than one woman, and vice versa, What is the percentage of total population of adults who are married ?
   36.4%
   21.5%
   33.3%
   30.6%
   25.5%
   Option A
   Let total men = x
   Total women = y
   52/100 ×x = 28/100 ×y
   => 𝑥/𝑦 = 7/13
   ” Required percentage = [7*0.52 + 13*0.28]/20*100 = 36.4%

    

10. Tickets numbered 1 to 20 are mixed up and then a ticket is drawn at random. What is the probability that the ticket drawn has a number which is a multiple of 3 or 5?
    7/23
    8/21
    9/20
    7/23
    9/19
    Option C
    Here, S = {1, 2, 3, 4, …., 19, 20}.
    Let E = event of getting a multiple of 3 or 5 = {3, 6 , 9, 12, 15, 18, 5, 10, 20}.
    P(E) = n(E)/n(S) = 9/20