Find the mean proportion between 5 and 45.

Related Mcqs:

1. The arithmetic mean of the scores of a group of students in a test was 52. The brightest 20% of them secured a mean score of 80 and the dullest 25% a mean score of 31. The mean score of remaining 55% is___________?

   A. 45 B. 50 C. 51.4 approx. D. 54.6 approx....

2. If the arithmetic mean of seventy five numbers is calculated, it is 35. If each number is increased by 5, then mean of new number is___________?

   A. 30 B. 40 C. 70 D. 90...

3. The mean of 50 observations was 36. It was found later that an observation 48 was wrongly taken as 23. The corrected new mean is___________?

   A. 35.2 B. 36.1 C. 36.5 D. 39.1...

4. A surn of money is to be distributed among A, B, C, D in the proportion of 5 : 2 : 4 : 3. If C gets Rs. 1000 more than D, what is B’s share ?

   A. Rs. 500 B. Rs. 1500 C. Rs. 2000 D. None of these...

5. Find the fourth proportion to 3, 7 and 9.

   A. 63 B. 31 C. 21 D. 27...

6. According to a recipe, 400 grams of flour should be mixed with 500 grams of sugar to bake cookies. If I have only 300 grams of flour, how much sugar should I mix to maintain the same proportion?

   A. 360 B. 380 C. 375 D. 400...

7. Three pipes A, B and C can fill a tank from empty to full in 30 minutes, 20 minutes and 10 minutes respectively. When the tank is empty, all the three pipes are opened. A, B and C discharge chemical solutions P, Q and R respectively. What is the proportion of solution R in the liquid in the tank after 3 minutes?

   A. 5/11 B. 6/11 C. 7/11 D. 8/11...

8. In what proportion must water be added to spirit to gain 20% by selling it at the cost price?

   A. 2:5 B. 1:5 C. 3:5 D. 4:5...

9. In a mixture of milk and water, the proportion of milk by weight was 80%. If, in a 180 gm mixture, 36 gms of pure milk is added, what would be the percentage of milk in the mixture formed?

   A. 80% B. 100% C. 84% D. 87.5% E. None of these...

10. A is a working partner and B is a sleeping partner in the business. A puts in Rs.15000 and B Rs.25000, A receives 10% of the profit for managing the business the rest being divided in proportion of their capitals. Out of a total profit of Rs.9600, money received by A is?

    A. Rs.3240 B. Rs.3600 C. Rs.3800 D. Rs.4200...