1 . 
Direction (Q. 15) : In each of the following questions, a number series is given based on a certain logic. A number in the series is suppressed. You have to find out this number which should come in place of question mark (?).
8, 4.5 ? 9.75, 21.5 56.25


Answer & Explanation
Answer : Option
A


Explanation : 

The series is x0.5+0.5, x1+1, x1.5+1.5, x2+2, x2.5+2.5






2 . 
302, 150, 74 ? 17 7.5


Answer & Explanation
Answer : Option
B


Explanation : 

The series is x1/2  1






3 . 
21 ? 194, 585, 1759, 5282


Answer & Explanation
Answer : Option
C


Explanation : 

The series is x3+1, x3+2, x3+3, x3+4, x3+5, ..........






4 . 
3, 28, 226, 1585, ? 47575


Answer & Explanation
Answer : Option
D


Explanation : 

The series is x9+1, x8+2, x7+3, x6+4, x5+5, ...........






5 . 
8, 13, ? 111, 452, 2265


Answer & Explanation
Answer : Option
D


Explanation : 

The series is (+5)x1, (+4)x2, (+3)x3, (+2)x4, (+1)x5.






6 . 
Kedar, Mohan and Kanti start a business jointly, investing Rs 8.5 lakhs. Rs 12 lakhs and Rs 15.5 lakhs respectively for six months. Mohan withdraws onethird of his capital after two months. Also, Kedar invests Rs 1.5 lakh more after 2 months. Their profit ratio after six months will be


Answer & Explanation
Answer : Option
B


Explanation : 

Reqd profit ratio will be
(8.5 x 2 + (8.5 + 1.5) x 4) : (12 x 2 + (12  4) x 4 ) (15.5) x 6 = 57 : 56 : 93






7 . 
Mr Kapoor purchased a house for Rs 2.65 lakhs. He spent 40 per cent of the cost price of the house on decoration. He consulted a property dealer to sell his house. If the property dealer demands Rs 6000 as commission charge and Mr Kapoor wants 30% profit, what selling price of the house should be fixed ?


Answer & Explanation
Answer : Option
C


Explanation : 

Total cost of the house after decoration = 2.65 x 1.4 = 3.71 lakhs.
= (3.71 x 130/100 + .06) lakhs
= 4.823 + 0.06 = Rs. 4.883 lakhs






8 . 
18 women and 14 men together can complete a piece of work in 8 days. The work done by a woman is onethird of that done by a man in one day. If 18 women and 14 men started working and, after 3 days, 10 men left and 6 women joined, in how many more days will the work be completed ?


Answer & Explanation
Answer : Option
D


Explanation : 

Work done by a woman in one day is 1/3rd of the work done by a man in one day.
= 3w = 1m
By question, 18w + 14 m = 20 m
20 m complete the work in 8 days.
in 3 days 3/8 work is done. work remaining = 1  3/8 = 5/8
20 m  1 work  8 days.
12 m  5/8 work  8x20/12x5/8 = 25/8 = 8 1/3 days






9 . 
Girish Chandra spends 45% of his monthly earning on purchasing items for his business, and out of the remaining he spends 60% on staff's salaries, 20% on advertisement, 10% on social work, while the remaining amount of Rs 2,200 is saved. What is Girish Chandra's monthly earning ?


Answer & Explanation
Answer : Option
A


Explanation : 

Money remaining after spending on different sectors = 10% of 55% of x = 2200
x = monthly income
x = 2200 x 100/10 x 100/55 = Rs. 40,000






10 . 
The cost of fencing a square plot at the rate of Rs 12 per metre is Rs 3.888. What will be the cost of flooring the plot at the rate of Rs 1.20 per square metre ?


Answer & Explanation
Answer : Option
D


Explanation : 

Let the side of the square be a.m.
Then 4a=3888/12 = 324 = a = 81m
Area of the square = (81)^{2}
Cost of flooring the area = (81)^{2} x 1.2
= 7873.20 ∴ x  y = 3






