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Question 346 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER] |
A can contains a mixture of two liquids A and B in proportion 7:5. When 9 litre of mixture are drawn off and the can is filled with B, the proportion of A and B becomes 7:9. How many litres of liquid A was contained by the can initially.
20 | |
22 | |
16 | |
21 |
Question 346 Explanation:
Let the can initially contain 7x litre and 5x litre of mixture A and B respectively. Thus out of 12x litre of total mixture, 9 litre were taken out.
Quantity of A in mix. left
= 7x - 9/12x * 7x
= 28x-21 / 4 litre
Quantity of B in mix. left
= 5x- 9/12x*5x
= 20x-15 / 4 litre
Therefore ratio
7:9
or x = 3
Otion 9)
Quantity of A in mix. left
= 7x - 9/12x * 7x
= 28x-21 / 4 litre
Quantity of B in mix. left
= 5x- 9/12x*5x
= 20x-15 / 4 litre
Therefore ratio
7:9
or x = 3
Otion 9)
Question 347 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER] |
A student got 425 marks out of 500 in an examination. Subject were Hindi, English, Physics, Chemistry and Mathematics. His marks in Hindi and English were ranging from 80 to 85. (80 and 85 are also included). Marks in Chemistry, Physics and Mathematics were ranging from 75 to 80, 85 to 90 and 90 to 95 (including the given number) respectively. His marks in Hindi And Chemistry were same, whereas marks in English were same as marks in Physics. His marks in Mathematics were
95 | |
90 | |
93 | |
Data in insufficient |
Question 347 Explanation:
Subject ----------- Range of marks
Hindi ------------- 80-85
English ----------- 80-85
Physics ----------- 85-90
Chemistry --------- 75-80
Maths ------------- 90-95
Since marks in Hindi and Chemistry are same
so definitely marks will be 80.
Similarly in Physics and English marks will be 85
So in Maths marks = 425-*85+85+80+80)
= 95
Hindi ------------- 80-85
English ----------- 80-85
Physics ----------- 85-90
Chemistry --------- 75-80
Maths ------------- 90-95
Since marks in Hindi and Chemistry are same
so definitely marks will be 80.
Similarly in Physics and English marks will be 85
So in Maths marks = 425-*85+85+80+80)
= 95
Question 348 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER] |
6 boys and 8 men get a total wage of Rs 8000 in 4 days. 8 boys and 6 men get a total of Rs 6000 in 3 days. The efficiency ratio of boy and a man respectively?
1:1 | |
5:4 | |
4:3 | |
1:2 |
Question 348 Explanation:
By solve the equation:
6X+8Y = 2000
8X+6Y = 2000
X=Y
X:Y = 1:1
6X+8Y = 2000
8X+6Y = 2000
X=Y
X:Y = 1:1
Question 349 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER] |
If MONKEY = 26 CROCODILE = 47 ELEPHANT = 37 OSTRICH = 46 Then TIGER =
36 | |
51 | |
29 | |
19 |
Question 349 Explanation:
Position of all the letters of the word MONKEY are 13 15 14 11 05 25
& position of 6 successive letters starting from M are 13 14 15 16 17 18
(Here M is the first letter of word MONKEY)
Modulus of differences of these numbers are 00 01 01 05 12 07
Sum of these differences = 26 hence the code
Similarly for others
& position of 6 successive letters starting from M are 13 14 15 16 17 18
(Here M is the first letter of word MONKEY)
Modulus of differences of these numbers are 00 01 01 05 12 07
Sum of these differences = 26 hence the code
Similarly for others
Question 350 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER] |
choose the incorrect one
7:17:48 AM | |
7:20:24 AM | |
7:21:18 AM | |
7:16:04 AM |
Question 350 Explanation:
all the differences are 52 minutes except 8th.
Question 351 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER] |
What is the next number of the following sequence 1, 1, 3, 9, 23, ....
57 | |
53 | |
41 | |
33 |
Question 351 Explanation:
Differences of elements are the sum of two series
2, 4, 8, 16, 32, 64,
1, 3, 5, 7, 9, 11
2-1, 4-3, 8-5, 16-7, 32-9, 64-11
1, 1, 3, 9, 23, 53
2, 4, 8, 16, 32, 64,
1, 3, 5, 7, 9, 11
2-1, 4-3, 8-5, 16-7, 32-9, 64-11
1, 1, 3, 9, 23, 53
Question 352 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER] |
How many words can be formed by using all the letters of the word JEWELLER, if W and J are respectively the first and last letters of the words formed
60 | |
1920 | |
96 | |
780 |
Question 352 Explanation:
since first and last letters are fixed so no. of methods to arrange other 6 letters = 6*5*4*3*2*1/3*2*1*2*1 = 60
Question 353 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER] |
Two cars A and B start from the same point. 'A' travels at a constant speed of 10 km/hr but 'B' starts with 5 km/h and every hr its speed increases by 0.25 km/hr. After how many hours will B overtake A?
41 hr | |
52 hr | |
21 hr | |
57 hr |
Question 353 Explanation:
Let the time taken by B to overtake A be t hours
So distance travelled by B = Distance Travelled by A (i)
distance Travelled by A in t hr = speed * time
= 10t
and Distance travelled by B =
5, 5.25, 5.50, 5.75, ..... t
Total Distance = n/2(2a+(n-1)d) (by using AP)
therefor 10t = t/2(2*5+(t-1).25) .....by (i) equation
so t = 41 (Solve)
So distance travelled by B = Distance Travelled by A (i)
distance Travelled by A in t hr = speed * time
= 10t
and Distance travelled by B =
5, 5.25, 5.50, 5.75, ..... t
Total Distance = n/2(2a+(n-1)d) (by using AP)
therefor 10t = t/2(2*5+(t-1).25) .....by (i) equation
so t = 41 (Solve)
Question 354 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER] |
There are two buildings P and Q. If75persons are sent from P to Q, then the number of persons in each building is the same. If105persons are sent from Q to P, then the number of persons in P is double the number of persons in Q. How many persons are there in building P?
615 | |
675 | |
475 | |
510 |
Question 354 Explanation:
Let number of persons in building P be P and
number of persons in building Q be Q
P-75 = Q+75
=> P = Q + 150 ---- (i)
P+105= 2(Q-105)
=> P + 315 = 2Q ---- (ii)
Putting value of P from (i) in (ii)
Q + 150 + 315 = 2Q
Q = 465
P = 615
number of persons in building Q be Q
P-75 = Q+75
=> P = Q + 150 ---- (i)
P+105= 2(Q-105)
=> P + 315 = 2Q ---- (ii)
Putting value of P from (i) in (ii)
Q + 150 + 315 = 2Q
Q = 465
P = 615
Question 355 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER] |
Rank of the word DEHRADUN in the dictionary of words formed by letters of the word DEHRADUN taking all letters at a time?
3984 | |
4274 | |
4312 | |
4456 |
Question 355 Explanation:
total no. of words = 8*7*6*5*4*3*2*1/2*1 = 20160
On arranging letters in order we get
a, d, d, e, h, n, r, u
so rank
=[20160/8]*1+[2520*2/7]*2+[720/6]*2+[120/5]*3+[24/4]*0+[6/3]*0+[2/2]*1+1 = 4274
On arranging letters in order we get
a, d, d, e, h, n, r, u
so rank
=[20160/8]*1+[2520*2/7]*2+[720/6]*2+[120/5]*3+[24/4]*0+[6/3]*0+[2/2]*1+1 = 4274
Question 356 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER] |
Chocolate are purchased at the rate of 11 for Rs.10 and sold at 10 for Rs.11. The profit percent is
11% | |
21% | |
9% | |
15% |
Question 356 Explanation:
Gain 21%
Suppose he bought (11*10) = 110 chocolate
CP = 10/11 * 110 = Rs. 100
SP = 11/10 * 100 = Rs. 121
Gain 21%
Suppose he bought (11*10) = 110 chocolate
CP = 10/11 * 110 = Rs. 100
SP = 11/10 * 100 = Rs. 121
Gain 21%
Question 357 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER] |
x+y+z is equal to or less than 8, if, X y and z are integers then maximum product of, X y and z will be
24 | |
27 | |
18 | |
12 |
Question 357 Explanation:
maximum product will be obtained for 3, 3, 2 so it will be 18
Question 358 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER] |
Shaktiman saw a criminal at a distance of 10m. When Shaktiman started chasing him the criminal also started running. If the ratio of Speeds of Shaktiman to Criminal is 12:9. Then how much distance did Shaktiman run to catch the Criminal?
None of these | |
349m | |
325m | |
375m |
Question 358 Explanation:
Let the distance traveled by criminal before he is caught be x
Time taken by Shaktiman = Time taken by Robber
(10 + x)/12 = x/9
=> 30 + 3x = 4x
=> x = 30m
Distance traveled by Shaktiman = 30+10 = 40m
Time taken by Shaktiman = Time taken by Robber
(10 + x)/12 = x/9
=> 30 + 3x = 4x
=> x = 30m
Distance traveled by Shaktiman = 30+10 = 40m
Question 359 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER] |
IF TWINKLE TWINKLE LITTLE STAR is coded as 211514 then what is the code for "LONDON BRIDGE IS FALLING"
788264 | |
728224 | |
71754 | |
728814 |
Question 359 Explanation:
Each lettter is coded as A=1, B=2. C=3 ....Z=26
Code is formed by: multiplication of highest number of each word - (Sum of highest number of each word)
So for TWINKLE TWINKLE LITTLE STAR = 23*23*20*19 - (23+23+20+20) = 211600 - 86
Similarly for LONDON BRIDGE IS FALLING = (15*18*19*14) - (15+18+19+14) = 71820 - 66 = 71754
Code is formed by: multiplication of highest number of each word - (Sum of highest number of each word)
So for TWINKLE TWINKLE LITTLE STAR = 23*23*20*19 - (23+23+20+20) = 211600 - 86
Similarly for LONDON BRIDGE IS FALLING = (15*18*19*14) - (15+18+19+14) = 71820 - 66 = 71754
Question 360 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER] |
Find the product of mean, median and mode (i.e. you need to find mean*median*mode)for the following list of values? 41; 13; 13; 27; 28; 31; 27; 17; 34; 28; 27
17725 | |
18225 | |
18954 | |
17775 |
Question 360 Explanation:
Mean = Sum of nos. / Count of numbers = 286/11 = 26
Median = Middle term when number are arranged in ascending order = 27
Mode = Number which is present maximum number of times =27
Product = 26*27*27 = 18954
Median = Middle term when number are arranged in ascending order = 27
Mode = Number which is present maximum number of times =27
Product = 26*27*27 = 18954
There are 360 questions to complete.