Aptitude test - 36

[chayanika]

3.d)


2*2+a=2*a+3

so a=1

[chayanika]

4.c)Rs. 3.00


of 100 grams,


cp in 1st case, 2* 100/3 * 33 + 100/3 * 24=3000p=30 Rs.


cp in 2nd case, 100/3 *33 + 200/3 *24= 2700p=27 Rs


hence he saved3 Rs.

[chayanika]

5.b)72 mins


math questions=50


other questions=200-50=150


let time for solving each other question=x min


time taken for solving other questions = 150x


time taken for solving mathematics questions = 2* 50x=100x


total time taken


150x + 100x = 180 min (3 Hrs)


x = 18/25 mins


time taken for solving all mathematics questions = 2* 50 * 18/25


=72mins

[Tan]

*In a class composed of x girls and y boys what part of the class is composed of girls

A.y/(x + y)
B.x/xy
C.x/(x + y)
D.y/xy


*What
is the maximum number of half-pint bottles of cream that can be filled
with a 4-gallon can of cream(2 pt.=1 qt. and 4 qt.=1 gal)

A.16
B.24
C.30
D.64



*If the operation,^ is defined by the equation x ^ y = 2x + y,what is the value of a in 2 ^ a = a ^ 3

A.0
B.1
C.-1
D.4


*A
coffee shop blends 2 kinds of coffee,putting in 2 parts of a 33p. a gm.
grade to 1 part of a 24p. a gm.If the mixture is changed to 1 part of
the 33p. a gm. to 2 parts of the less expensive grade,how much will the
shop save in blending 100 gms.

A.Rs.90
B.Rs.1.00
C.Rs.3.00
D.Rs.8.00


*There
are 200 questions on a 3 hr examination.Among these questions are 50
mathematics problems.It is suggested that twice as much time be spent
on each maths problem as for each other question.How many minutes
should be spent on mathematics problems

A.36
B.72
C.60
D.100

[keerthi]

*In a class composed of x girls and y boys what part of the class is composed of girls

A.y/(x + y)
B.x/xy
C.x/(x + y)
D.y/xy

total = x+y
part of girls = x/x+y
part of boys = y/x+y

[keerthi]

*What is the maximum number of half-pint bottles of cream that can be filled with a 4-gallon can of cream(2 pt.=1 qt. and 4 qt.=1 gal)

A.16
B.24
C.30
D.64

1 pint =1/8th of gallon
1/2 pint = 1/16th of gallon
16 -1/2 pints = 1 gallon
4-gallons = 64- 1/2 pints

[keerthi]

*If the operation,^ is defined by the equation x ^ y = 2x + y,what is the value of a in 2 ^ a = a ^ 3

A.0
B.1
C.-1
D.4

4+a = 2a+3
a =1

[keerthi]

*There are 200 questions on a 3 hr examination.Among these questions are 50 mathematics problems.It is suggested that twice as much time be spent on each maths problem as for each other question.How many minutes should be spent on mathematics problems

A.36
B.72
C.60
D.100

Let time spent on other questions = x
time spent on maths questions = 2x
50(2x)+150(x) = 180
250x = 180
x = 18/25
time spent on each maths question = 36/25
total time spent on maths question = 50*36/25 = 72min

[keerthi]

*A coffee shop blends 2 kinds of coffee,putting in 2 parts of a 33p. a gm. grade to 1 part of a 24p. a gm.If the mixture is changed to 1 part of the 33p. a gm. to 2 parts of the less expensive grade,how much will the shop save in blending 100 gms.

A.Rs.90
B.Rs.1.00
C.Rs.3.00
D.Rs.8.00
Ans)C