The speed of boat in still water and the speed of stream are 10 km/hr and 2 km/hr respectively. Find the time required to cover a distance of 120 km in both downstream speed and upstream speed.
15 hours
10 hours
20 hours
25 hours
30 hours
Option D Downstream speed of the boat = 10 + 2 = 12 km/hr upstream speed of the boat = 10 – 2 = 8 km/hr Time = 120/12 + 120/8 = 10 + 15 = 25 hours.
Aju and Viju can do a piece of work in 20 days and 30 days respectively. If they worked for alternate days and work starts from Aju, then how many days are required to complete the total work ?
24 days
20 days
15 days
18 days
25 days
Option A LCM of 20 and 30 = 60 Total work = 60 efficiency of Aju = 60/20 = 3 efficiency of Viju =60/30 = 2 They worked for alternate days and start from Aju 2 days work of Aju and Viju = 3 + 2 = 5 work 12 (2 days) = 12 (5 work) Time required to complete the work = 2 * 12 = 24 days
A,B,C enter into a partnership business investing rs.25000, rs.28000 and rs.32000 respectively. Profit of the business at the end of the one year is rs.17000, then what is the profit share of A in the business ?
8000
8500
5600
5000
6400
Option D Profit sharing ratio of A, B and C = 25000 : 28000 : 32000 = 25 : 28 : 32 Total profit = 17000 Profit share of A = 17000 * 25/85 = 5000
The sum of the present age of Aman and Suman is 50 years. If the ratio of ages of Aman and Suman after 5 years be 3 : 2. Then, find the age of Aman after 4 years from now.
38
35
40
45
28
Option B Let the ages of Aman and Suman After 5 years be 3x and 2x respectively. Present age of Aman = (3x – 5) years Present age of Suman = (2x – 5) years (3x – 5) + (2x – 5) = 50 5x – 10 = 50 x= 12 present age of Aman = (3x – 5) = 31 age of Aman after 4 years = 31 + 4 = 35 years
A shopkeeper is selling a watch at a discount of 20% on the marked price. If the marked price is 40% above the cost price and the watch was sold for rs.448, then what is the cost price of the watch ?
500
400
320
360
480
Option B Let CP of watch = 100x MP of watch = 100 * 140/100 = 140x SP of watch = 140 * 4/5 = 112x SP of watch = rs.448 CP of watch = 448/112x * 100x = 400
18, 89, 443, 2212, 11056, ?
54280
55275
50424
7425
9528
Option B The series is, (*5 – 1), (*5 -2), (*5 – 3), (*5 – 4), (*5 – 5)
2, 3, 11, 38, 102, ?
128
225
325
227
445
Option D The series is + 1^3, + 2^3, + 3^3, + 4^3, + 5^3
141625 478135Thank you for the great writeup. It in fact was a amusement account it. Appear advanced to far added agreeable from you! Nevertheless, how could we communicate? 334233
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141625 478135Thank you for the great writeup. It in fact was a amusement account it. Appear advanced to far added agreeable from you! Nevertheless, how could we communicate? 334233
You can certainly see your expertise in the article you write.
The world hopes for more passionate writers such as you who are not afraid to mention how
they believe. All the time follow your heart.