Directions: Refer the following data to answer the questions given below.
Given that;
40 litres of mixture contains 10% water
Ques is 20% of water in the new mixture
10% of water in 40 liters is 4 liters
Now the 36 is 90% of milk in old mixture
In new mixture 20% of water, remaining 80% milk
36 litres milk= 80%
9(36/4) litres water =20%(80/4)
(36+9) 45 litres =(80%+20%)100%
5 liters water must be added to make 20% of water in the new mixture
Directions: Read the following information to answer the question.
Explanation :
2(A + B + C)’s 1 day’s work =1/30+1/24+1/20
=15/120=1/8
(A + B + C)'s 1 day's work =1/16
Work done by A, B and C in 10 days =10/16=5/8
. Remaining work =1 -5/8=3/8
A's 1 day's work =1/16-1/24=1/48
Now,1/48
work is done by A in 1 day.
So,3/8 Work will be done by A in48 x3/8 = 18 days
Directions: Read the following information to answer the question.
Explanation :
(B + C)’s 1 day’s work = 1/9+1/12=7/36
Work done by B and C in 3 days ={7/36} x 3=7/12
Remaining work =1 -7/12=5/12
Now,1/24Work is done by A in 1 day.
So,5/12 work is done by A in 24 x{5/12}= 10 days.
Directions: Read the following information to answer the question.
The petrol consumption rate of a new car ‘Palto’ depends on its speed and may be described by the graph below:
At 40 km/hr, she spends 200/40 = 5 hrs and thereby consumes
5 × 2.4 = 12.0 litres.
At 80 km/hr she spends 200/80 = 2.5 litres and consumes
Directions: Read the following information to answer the question.
Three clocks in train station give following reading
Clock A: 8:00 clock
Clock B: 8:50 clock
Clock C: 8:20 clock
One clock is 20 min. fast. One clock is slow. One clock is off
by half an hour. Which of the following can be the real time?
8:00 (real time 7:40)
8:50 (no good would be fast)
8:20 (no good-real time would have to be 7:50 or 8:50)
8:00 (real time 7:40)
8:20 (no good would be fast)
8:50 (no good-real time would have to be 8:20 or 9:20)
8:50 (real time 8:30)
8:00 (ok would be slow)
8:20 (no good-real time would have to be 7:50 or 8:50)
8:50 (real time 8:30)
8:20 (ok would be slow)
8:00 (ok real time would have to be 7:30 or 8:30)
So, real time is 8:30.