|
c) fourth
d) fifth
e) sixth
Q. At a certain moment a watch shows 2 min lag although it is running fast.
If it showed a 3 min lag at that moment, but also gains by 1/2 min more a day
than its current speed
it would show the true time one day sooner than it usually does.
How many mins does the watch gain per day.
a).2
b).5
c).6
d).4
e).75
Q. In 400m race A gives B a start of 7 sec and beats him by 24 sec.
In another race A beats B by 10 sec.the speeds are in the ratio
a)8:7
b)7:6
c)10:8
d)6:8
e)12:10
Q. 3x+4y=10
x3 + y3=6
What is the minimum value of 3x+11y=?
Q. There are 600 tennis players
4% wear wrist band on one wrist
Of the remaining, 25% wear wrist bands on both hands
How many players don't wear a wrist band?
Ans. 432
Q. Three types of tea the a,b,c costs Rs. 95/kg,100/kg and70/kg respectively.
How many kgs of each should be blended to produce 100 kg of mixture worth
Rs.90/kg,
given that the quntities of band c are equal
a)70,15,15
b)50,25,25
c)60,20,20
d)40,30,30
Ans. (b)
Q. Two distinct no's are taken from 1,2,3,4......28
Find the probability that their sum is less than 13
|
|
