1) In a club there are certain no. of males and females. If
15 females are absent then no. of males will be twice that
of females. If 45 males are absent then female strength
will be 5 times that of males. Find no. of males actually
present.
Answer Posted / srv
F-15=2M. (1)
5(M-45)=F (2)
Putting value of F in equation (1) we get
5M-225-15=2M
-240= -3M
M=80
Putting vale of M in equation (2) we get
F=5(80-45)
F=5*35
F=175
| Is This Answer Correct ? | 2 Yes | 0 No |
Post New Answer View All Answers
In a pond ecosystem, large fishes and small fishes will be there. If we want to remove small amount of pollutants, small fishes are to be employed. In a food chain food passes through a number of mouths and en route the mouth of the super feeder-the eagle. Its population determines the size of the ecosystem. But this has been proved false.What can you infer from above? (4 choices)
A gardener plants 100 meters towards east, next 100 meters towards north,next 100 meters towards west. 98 meters towards east, 96 meters towards north and 96 meters towards west, 94 meters towards south. and 94 meters towards east and so on. If a person walks between the trees what is the total distance travelled by him before he reaches the center.
cpahlet : shoulder :: ring : ?
Using the digits 1,5,2,8 four digit numbers are formed and the sum of all possible such numbers.
Find the result of the following _expression if, M denotes modulus operation, R denotes round-off, T denotes truncation: M(373,5)+R(3.4)+T(7.7)+R(5.8)
A man while going down in a escalator(which is moving down) takes 50 steps to reach down and while going up takes 125 steps. If he goes 5 times faster upwards than downwards. What will be the total no of steps if the escalator were'nt moving.
a radioactive material of mass 16 grms in 10 years due to radiation. how many years will it take for the material to attain a mass f 1 gm
a person who decided to go weekend trip should not exceed 8 hours driving in a day average speed of forward journey is 40 mph.due to traffic in sun days the return journey average speed is 30 mph.how far he can select a picnic spot.
Technical questions
In a group of 15 students,7 of them have studied Marathi, 8 of them have studied History, and 3 have not studied either. How many students studied both Marathi and History?
If A=Z, B=Y, C=X, .......... Z=A, Then ZERD = ?
in a railway station, there are tow trains going. One in the harbour line and one in the main line, each having a frequency of 10 minutes. the main line service starts at 5 o'clock. the harbour line starts at 5.02a.m. a man goes to the station every day to catch the first train. what is the probability of man catchinhg the first train
Two persons start at the same point, walk in opposite directions with 5km/hr and 5.5km/hr respectively. What is the distance separated after 2 and half hrs?
There is a square of side 6cm . A circle is inscribed inside the square. Find the ratio of the area of circle to square.
A person is 80 years old in 490 and only 70 years old in 500 in which year is he born?