puzzles quantitative aptitude test

Online aptitude test questions and answers for company exam

Question 2141 ->Click on any option to know the correct answers (सही उत्तर जानने के लिए किसी भी Choice पर क्लिक करें)
total number of zeros in the right in the product 1*2*3.....24*25 will be
A
1
B
7
C
6
D
5
Question 2141 Explanation: 
1*2*3*4.....24*25 has 5=5*1, 10=5*2, 15=5*3, 20=5*4, 25=5*5 so total number of 5 is equal to 6,
so total number of zeros in the right will be 6






Question 2142 ->Click on any option to know the correct answers (सही उत्तर जानने के लिए किसी भी Choice पर क्लिक करें)
Ram invests a sum of 8 lacs in two different businesses partly. In first business, he receives a profit of 3.5 lacs and in second business, he obtains a loss of 16 %. In overall business he obtains a profit of 40 %. The ratio of investments in first and second business is
A
3/4
B
1/2
C
35/16
D
49/15
Question 2142 Explanation: 
Let the investments in two businesses are respectively x & y
Then according to given conditions
x + 350000 + y 0.84 = 1.4 (x + y) (i)
x + y = 800000 (ii)
On solving these two equations, we get x = 612500 and y = 187500
Question 2143 ->Click on any option to know the correct answers (सही उत्तर जानने के लिए किसी भी Choice पर क्लिक करें)
A boat covers 24 km upstream and 36 km downstream in 6 hours, while it covers 36 km upstream and 24 km downstream is 13/2 hours. The velocity of the current (in km/hr) is.
A
2
B
3
C
2.5
D
3.5
Question 2143 Explanation: 
Let speed upstream & speed downstream be x km/hr and y km/hr respectively. Then
24/x + 36/y = 6 and 36/x + 24/y = 13/2
=> 24u + 36v = 6 and 36u + 24v = 13/2 (u = 1/x and v = 1/y)
Adding we get
u = 1/8 and v = 1/2
=> x = 8 and y = 12
Velocity of current = 1/2 (12-8) km/hr = 2 km/hr







Question 2144 ->Click on any option to know the correct answers (सही उत्तर जानने के लिए किसी भी Choice पर क्लिक करें)
There are 5 mangoes and 6 bananas. In how many different ways can a selection of fruits be made if all fruits of same kind are numbered with different tags.
A
2047
B
41
C
30
D
2048
Question 2144 Explanation: 
All the fruits are numbered with different tags, thus it can be considered that all fruits are different objects,
For each fruit, we have two choice s- Either select the fruit or not
Hence total number of choice s are 2*2*2.11 times 1 = 2047

Question 2145 ->Click on any option to know the correct answers (सही उत्तर जानने के लिए किसी भी Choice पर क्लिक करें)
the difference between rank of REACT and TRACE in the dictionary formed by the letters of the same word will be
A
16
B
18
C
5
D
none of these
Question 2145 Explanation: 
dd






Question 2146 ->Click on any option to know the correct answers (सही उत्तर जानने के लिए किसी भी Choice पर क्लिक करें)
60 % of a number is equal to 80 % of another. Ratio of the numbers is
A
1/5
B
5/6
C
1/2
D
4/3
Question 2146 Explanation: 
60a/100 = 80b/100
6a = 8b
a/b = 8/6 = 4/3
Question 2147 ->Click on any option to know the correct answers (सही उत्तर जानने के लिए किसी भी Choice पर क्लिक करें)
next number of the sequence 3, 6, 10, 16, 26, ..... will be
A
44
B
40
C
28
D
32
Question 2147 Explanation: 
This sequence is formed by two sequences 1) 2, 4, 6, 8, 10, 12
2) 1, 2, 4, 8, 16, 32
adding these two sequences, we get the result






Question 2148 ->Click on any option to know the correct answers (सही उत्तर जानने के लिए किसी भी Choice पर क्लिक करें)
In a shop, the profit is 175% of the cost. If the cost increases by 25% but the selling price remains constant, find out approximately what percentage of the selling price is the profit?
A
120
B
57.5
C
59.5
D
54.5
Question 2148 Explanation: 
Let the CP be Rs. 100
SP considering 175% of profit = 100+175 = Rs. 275
CP after 25 increase = Rs. 125

Profit = 275 125 = Rs. 150
Profit % on SP = (150/275)*100 = 54.5 (approximately)


Question 2149 ->Click on any option to know the correct answers (सही उत्तर जानने के लिए किसी भी Choice पर क्लिक करें)
Difference between 4 and (1.333+1.333+1.333) is
A
$10^{-3}$
B
$10^{-2}$
C
$10^{-5}$
D
$10^{-1}$
Question 2149 Explanation: 
4-(1.333+1.333+1.333) = .001 = 10^-3






Question 2150 ->Click on any option to know the correct answers (सही उत्तर जानने के लिए किसी भी Choice पर क्लिक करें)
Total no. of methods to distribute 6 oranges among 4 persons? It is compulsory to give minimum 1 orange to each person.
A
25
B
10
C
24
D
20
Question 2150 Explanation: 
after giving 1 orange to each remaining oranges = 2
so methods to distribute these oranges among 4 persons = C(4+2-1, 4-1)
=C(5, 3) = 5*4*3*2*1/3*2*1*2*1 = 10
There are 2150 questions to complete.

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