The third proportional to 3.5, 5.6 is:___________?

Related Mcqs:

1. Two pipes A and B can separately fill a cistern in 60 min and 75 min respectively. There is a third pipe in the bottom of the cistern to empty it. If all the three pipes are simultaneously opened, then the cistern is full in 50 min. In how much time, the third pipe alone can empty the cistern?

   A. 90 min
   B. 100 min
   C. 110 min
   D. 120 min

2. A tank is filled by three pipes with uniform flow. The first two pipes operating simultaneously fill the tank in the same during which the tank is filled by the third pipe alone. The second pipe fills the tank 5 hours faster than the first pipe and 4 hours slower than the third pipe. The time required by the first pipe is?

   A. 6 hrs
   B. 10 hrs
   C. 15 hrs
   D. 30 hrs

3. H.C.F of 3240, 3600 and a third number is 36 and their L.C.M is 2⁴ * 3⁵ * 5² * 7². The third number is___________?

   A. 2² * 3⁵ * 7²
   B. 2² * 5³ * 7²
   C. 2⁵ * 5² * 7²
   D. 2³ * 3⁵ * 7²

4. There are three numbers. 5/7th of the first number is equal to 48% of the second number. The second number is 1/9th of the third number. If the third number is 1125, then find 25% of the first number?

   A. 168
   B. 84
   C. 42
   D. 21
   E. None of these

5. Three persons invested Rs.9000 in a joint business. The second person invested Rs.1000 more than the first and the third Rs.1000 more than second. After two years, they gained Rs.5400. How much third person will get?

   A. Rs.2400
   B. Rs.3600
   C. Rs.2850
   D. Rs.2000

6. Kashif and Nadeem jointly started a business. Kashif invested three times as Nadeem did and invested his money for double time as compared to Nadeem. Nadeem earned Rs. 4000. If the gain is proportional to the money invested and the time for which the money is invested then the total gain was?

   A. Rs.16000
   B. Rs.20000
   C. Rs.24000
   D. Rs.28000

7. The sum of three numbers is 98. If the ratio of the first to the second is 2 : 3 and that of the second to the third is 5 : 8, then the second number is :__________?

   A. 20
   B. 30
   C. 48
   D. 58

8. Two numbers are respectively 20% and 50% more than a third number. The ratio of the two numbers is :__________?

   A. 2 : 5
   B. 3 : 5
   C. 4 : 5
   D. 6 : 7

9. If 40% of a number is equal to two-third of another number, what is the ratio of first number to the second number ?

   A. 2 : 5
   B. 3 : 7
   C. 5 : 3
   D. 7 : 3

10. The sum of three numbers is 172. The ratio of the first and second numbers is 8:11. The ratio of the second and third is 5:7. Find the second number.

    A. 44
    B. 55
    C. 66
    D. 77