12432.If 1.5x=0.04y then the value of (y-x)/(y+x) is
730/77
73/77
7.3/77
None
Explanation:
x/y = 0.04/1.5 = 2/75 So (y-x)/(y+x) = (1 - x/y)/(1 + x/y) = (1 - 2/75)/ (1 + 2/75) = 73/77.
x/y = 0.04/1.5 = 2/75 So (y-x)/(y+x) = (1 - x/y)/(1 + x/y) = (1 - 2/75)/ (1 + 2/75) = 73/77.
12433.The smallest number which when diminished by 3 is divisible by 21,28,36 and 45 is...
869
859
4320
1263
Explanation:
The required number = l.c.m. of (21,28,36 ,45)+3=1263
The required number = l.c.m. of (21,28,36 ,45)+3=1263
12434.If x and y are the two digits the number 653xy such that this number is divisible by 80, then x+y is equal to:
2
3
4
6
Explanation:
Since 653xy is divisible by 2 as well as by 5, so y = 0 Now 653x0 is divisible by 8 so 3x0 is also divisible by 8. By hit and trial x=6 and x+y = 6
Since 653xy is divisible by 2 as well as by 5, so y = 0 Now 653x0 is divisible by 8 so 3x0 is also divisible by 8. By hit and trial x=6 and x+y = 6
12435.Which of the following is not true about C Programming?
C provides function oriented programming
C program can be compiled on a C++ compiler
C supports encapsulation
none of these
12436.What will be effect of size of operator on Unions?
gives the size of the biggest member
gives the size of sum of all members
gives the size of the smallest of the members
none of these
12437.Divide by Zero is a common exception of type
Runtime
Compile Time
can be either Run time or Compile time
none of these
12438.What is the default size of an integer variable ?
2
4
can be 2 or 4 depending on the operating system
none of these
12439.Which of the following is not true about C Programming?
C provides function oriented programming
C program can be compiled on a C++ compiler
C supports encapsulation is false.
none of these
12440.What will be effect of size of operator on Unions?
gives the size of the biggest member
gives the size of sum of all members
gives the size of the smallest of the members
none of these
12441.A 20 litre solution conatins oil and kerosene in the ratio 3:5,replace 4 litres of mixture with 4 litres of kerosene what will be the ratio of oil and kerosene?
1/7
3/7
1/6
1/8
Explanation:
When 4 liters are taken out of 20l, amount of oil in remaining 16 lt = 3/8 $\times$ 16 = 6 Hence the remaining 10 litres would be kerosene Now additional 4 litres of kerosene is added to the solution So total quantity of kerosene = 14 litres Ratio of oil:kerosene = 6/14 = 3/7
When 4 liters are taken out of 20l, amount of oil in remaining 16 lt = 3/8 $\times$ 16 = 6 Hence the remaining 10 litres would be kerosene Now additional 4 litres of kerosene is added to the solution So total quantity of kerosene = 14 litres Ratio of oil:kerosene = 6/14 = 3/7
41894.A teacher can divide her class into groups into groups of 5,13 and 17. What is the smallest possible strength of the class?
835
940
1105
1220
Explanation:
For smallest possible class strength, we consider LCM of the given numbers. So LCM (5, 13, 17) = 1105.
For smallest possible class strength, we consider LCM of the given numbers. So LCM (5, 13, 17) = 1105.
41895.If QUESTION = DOMESTIC what will b code for RESPONSE ?
OMESUCEM
OMESICSM
OMESICEM
OMESISCM
Explanation:
Q U E S T I O N
D O M E S T I C
We can see in the word "RESPONSE" only R and P are the letters whose code is not given, by having a look on options we can say code for R is O and code for P is S (because common in all options).
Now we can easily code the word "RESPONSE" as "OMESICEM".
Q U E S T I O N
D O M E S T I C
We can see in the word "RESPONSE" only R and P are the letters whose code is not given, by having a look on options we can say code for R is O and code for P is S (because common in all options).
Now we can easily code the word "RESPONSE" as "OMESICEM".
41896.A box contains 90 bolts each of 100 gm and 100 bolts each of 150 gm. If the entire box weighs 35.5 kg., then the weight of the empty box is :
10 kg
10.5 kg
11 kg
11.5 kg
Explanation:
Let the weight of Empty box be x
90 × 0.100 + 100 × 0.150 + x = 35.5
Then x = 10.5 kg
Let the weight of Empty box be x
90 × 0.100 + 100 × 0.150 + x = 35.5
Then x = 10.5 kg
41897.The average age of 10 members of a committee is the same as it was 4 years ago, because an old member has been replaced by a young member. Find how much younger is the new member?
44
60
70
40
Explanation:
Let the average of all 10 members 4 years ago was x. After 4 years, 10 members age increases by 10 × 4 = 40. But there is no change in the average as a person is replaced by an younger one. Which means, the younger one age is 40 years less than the old one.
Let the average of all 10 members 4 years ago was x. After 4 years, 10 members age increases by 10 × 4 = 40. But there is no change in the average as a person is replaced by an younger one. Which means, the younger one age is 40 years less than the old one.
41898.If the radius of a circle is increased by 20% then the area is increased by:
44%
120%
144%
40%
Explanation:
Let say radius =$\pi r^{2}$=$\pi 10^{2}$=100$\pi$
New radius = 10 × 120% = 12
New area =$\pi 12^{2}$== 144π
Increment =$\dfrac{144π−100π}{100π}$×100 = 44%
Let say radius =$\pi r^{2}$=$\pi 10^{2}$=100$\pi$
New radius = 10 × 120% = 12
New area =$\pi 12^{2}$== 144π
Increment =$\dfrac{144π−100π}{100π}$×100 = 44%
41899.When Raja was born, his father was 32 years older than his brother and his mother was 25 years older than his sister. If Raja’s brother is 6 years older than Raja and his mother is 3 years younger than his father, how old was Raja’s sister when Raja was born?
10 year
20 year
44 year
40 year
Explanation:
Rajas brother 6 year old when Raja was born.
His fathers age = 32 + 6 = 38 year
His mothers age = 35 year
His sister age =35 – 25 = 10 years
Rajas brother 6 year old when Raja was born.
His fathers age = 32 + 6 = 38 year
His mothers age = 35 year
His sister age =35 – 25 = 10 years
41900.A man purchased a watch for Rs.400 and sold it at a gain of 20% of the selling price. The selling price of the watch is:
360
480
460
420
Explanation:
Cost price = 400
Gain% = 20%
Gain = 400 × 20100
= 80
Cost price = 400 + 80 = 480
Cost price = 400
Gain% = 20%
Gain = 400 × 20100
= 80
Cost price = 400 + 80 = 480
41901.If
1111 = r
2222 = t
3333 = e
4444 = n
5555 = ?
1111 = r
2222 = t
3333 = e
4444 = n
5555 = ?
s
p
z
Y
Explanation:
1 + 1 + 1 + 1 = 4
Four last letter is r
Similarly
5 + 5 + 5 + 5 = 20 i.e twenty so ans is Y.
1 + 1 + 1 + 1 = 4
Four last letter is r
Similarly
5 + 5 + 5 + 5 = 20 i.e twenty so ans is Y.
41902.A new apartment complex purchased 60 toilets and 20 shower heads. If the price of a toilet is three times the price of a shower head, what percent of the total cost was the cost of all the shower heads?
9%
10%
11%
13%
Explanation:
Let the cost of shower head is x. Then the cost of the toilet = 3x.
Total cost of 60 toilets and 20 shower heads = 60 × 3x + 20 × x = 200x
So shower heads cost as a percentage of total cost = 20x20x$\dfrac{20x}{20x}$× 100 = 10%
Let the cost of shower head is x. Then the cost of the toilet = 3x.
Total cost of 60 toilets and 20 shower heads = 60 × 3x + 20 × x = 200x
So shower heads cost as a percentage of total cost = 20x20x$\dfrac{20x}{20x}$× 100 = 10%
41903.Find the smallest number which leaves 22,35, 48 and 61 as remainders when divided by 26, 39, 52 and 65 respectively.
780
776
65
52
Explanation:
LCM of (26,39,52,65) = 780
Required number= 780 – 4 = 776
LCM of (26,39,52,65) = 780
Required number= 780 – 4 = 776