Q.1 There are some balls of red, green and yellow colour lying on a table. There are as many red balls as there are yellow balls. There are twice as many yellow balls as there are green ones. The number of red balls
A) is equal to the sum of yellow and green balls.
B) is double the number of green balls.
C) is equal to yellow balls minus green balls.
D) cannot be ascertained.
Ans. B
Let the no. of green balls are X.
Then yellow balls will be 2x & also the red balls.
Hence, the no. of red balls is double the no. of green ballds.
Q.2 In a class of 45 students, a boy is ranked 20th. When two boys joined, his rank was dropped by one. What is his new rank from the end?
A) 25th
B) 26th
C) 27th
D) 28th
Ans. C
(45+2) – (20+1) + 1
= 47-21+1
=48-21 = 27th
Q.3 A factory employes skilled workers, unskilled workers & clerks in the ratio of 8 : 5 : 1 & the wages of a skilled worker , an unskilled worker & a clerk are in the ratio of 5 : 2 : 3. When 20 unskilled workers are employed the total daily wages of all amount to Rs. 318. Find out the daily wages paid to each category of employees ?
A) Unskilled worker= Rs.3 , Skilled worker= Rs.7.50 , Clerk= Rs. 4.50
B) Unskilled worker= Rs.4 , Skilled worker= Rs. 8.50 , Clerk= Rs.5.50
C) Unskilled worker= Rs.5 , Skilled worker= Rs.9.50 , Clerk= Rs.6.50
D) Unskilled worker= Rs.6 , Skilled worker= Rs.10.50 , Clerk= Rs.7.50
Ans. A
Q.4 Six faces of a cube numbered from 1 to 6, each face carrying one different number.
1) Face 2 is opposite to the face 6
2) Face 1 is opposite to face 5
3) Face 3 is opposite to face 1 & face 5
4) face 4 is adjacent to face 2
Which of the following is correct ?
A) Face 6 is between face 2 & face 4
B) Face 2 is adjacent to face 3
C) face 1 is between the face 5 & face 6
D) None of the above
Ans. B
3 & 4 are opposite to each other.
Since 2 is adjacent of 4, hence it must be adjacent of 3
Q.5 A college starts from 10 a.m. & continues till 1:30 p.m. In this duration there are 5 periods . If 5 min are provided before each period to leave the room & enter the other, then what is the duration of each period ?
A) 41 min
B) 42 min.
C) 40 min
D) 38 min.
Ans. D
Duration of college time
=1:30 pm – 10:00 am
= 13:30 – 10:00
3:30 hour
Or 210 min.
Time left
= 5 * 4 = 20min
Therefore,
Time for 5 periods = 210 – 20 = 190 min.
Therefore,
Duration of 1 period
= 190/5 = 38 min
