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## Search found 48 matches

Wed Feb 21, 2018 1:35 pm
Forum: Problem Solving
Topic: 8, 27, 64, 100, 125, 216, 343
Replies: 0
Views: 2820

### 8, 27, 64, 100, 125, 216, 343

The pattern is 23, 33, 43, 53, 63, 73. But, 100 is not a perfect cube.
Wed Feb 21, 2018 1:34 pm
Forum: Problem Solving
Topic: 6, 9, 15, 21, 24, 28, 30
Replies: 0
Views: 13432

### 6, 9, 15, 21, 24, 28, 30

Each of the numbers except 28, is a multiple of 3.
Wed Feb 21, 2018 1:31 pm
Forum: Problem Solving
Topic: A man purchased a cow for Rs. 3000 and sold it the same day for Rs. 3600, allowing the buyer a credit of 2 years. If t
Replies: 0
Views: 2003

### A man purchased a cow for Rs. 3000 and sold it the same day for Rs. 3600, allowing the buyer a credit of 2 years. If t

C.P. = Rs. 3000.

S.P. = Rs. 3600 x 100 = Rs. 3000.
100 + (10 x 2)
Gain = 0%.
Wed Feb 21, 2018 1:30 pm
Forum: Problem Solving
Topic: A trader owes a merchant Rs. 10,028 due 1 year hence. The trader wants to settle the account after 3 months. If the ra
Replies: 0
Views: 1419

### A trader owes a merchant Rs. 10,028 due 1 year hence. The trader wants to settle the account after 3 months. If the ra

Required money = P.W. of Rs. 10028 due 9 months hence
= Rs. 10028 x 100
100 + 12 x 9
12
= Rs. 9200.
Wed Feb 21, 2018 1:29 pm
Forum: Problem Solving
Topic: A man purchased a cow for Rs. 3000 and sold it the same day for Rs. 3600, allowing the buyer a credit of 2 years. If t
Replies: 0
Views: 1370

### A man purchased a cow for Rs. 3000 and sold it the same day for Rs. 3600, allowing the buyer a credit of 2 years. If t

C.P. = Rs. 3000.

S.P. = Rs. 3600 x 100 = Rs. 3000.
100 + (10 x 2)
Gain = 0%.
Wed Feb 21, 2018 1:23 pm
Forum: General Questions and Strategies
Topic: In order to obtain an income of Rs. 650 from 10% stock at Rs. 96, one must make an investment of:
Replies: 0
Views: 639

### In order to obtain an income of Rs. 650 from 10% stock at Rs. 96, one must make an investment of:

To obtain Rs. 10, investment = Rs. 96.

To obtain Rs. 650, investment = Rs. 96 x 650 = Rs. 6240.
Wed Feb 21, 2018 1:22 pm
Forum: Problem Solving
Topic: If log 27 = 1.431, then the value of log 9 is:
Replies: 0
Views: 1308

### If log 27 = 1.431, then the value of log 9 is:

log 27 = 1.431

log (33 ) = 1.431

3 log 3 = 1.431

log 3 = 0.477

log 9 = log(32 ) = 2 log 3 = (2 x 0.477) = 0.954.
Wed Feb 21, 2018 1:21 pm
Forum: Problem Solving
Topic: If log 2 = 0.3010 and log 3 = 0.4771, the value of log5 512 is:
Replies: 0
Views: 1364

### If log 2 = 0.3010 and log 3 = 0.4771, the value of log5 512 is:

log5 512
= log 512
log 5
= log 29
log (10/2)
= 9 log 2
log 10 - log 2
= (9 x 0.3010)
1 - 0.3010
= 2.709
0.699
= 2709
699
= 3.876
Wed Feb 21, 2018 1:19 pm
Forum: Problem Solving
Topic: A boat running upstream takes 8 hours 48 minutes to cover a certain distance, while it takes 4 hours to cover the same d
Replies: 0
Views: 1453

### A boat running upstream takes 8 hours 48 minutes to cover a certain distance, while it takes 4 hours to cover the same d

Let the man's rate upstream be x kmph and that downstream be y kmph. Then, distance covered upstream in 8 hrs 48 min = Distance covered downstream in 4 hrs. x x 8 4 = (y x 4) 5 44 x =4y 5 y = 11 x. 5 Required ratio = y + x : y - x 2 2 = 16x x 1 : 6x x 1 5 2 5 2 = 8 : 3 5 5 = 8 : 3.
Wed Feb 21, 2018 1:18 pm
Forum: Problem Solving
Topic: A boat can travel with a speed of 13 km/hr in still water. If the speed of the stream is 4 km/hr, find the time taken by
Replies: 0
Views: 1549

### A boat can travel with a speed of 13 km/hr in still water. If the speed of the stream is 4 km/hr, find the time taken by

Speed downstream = (13 + 4) km/hr = 17 km/hr.

Time taken to travel 68 km downstream = 68 hrs = 4 hrs.
17