X, Y and Z are quantities of the same kind such that X:Y=5:8 and Y:Z=4:7. Find X:Z.

Related Mcqs:

1. Three quantities X, Y and Z are such that XY=kZ where k is constant. Initially, X was at 4 and X:Y:Z was 2:3:4. If the value of Y is changed to 12 and Z is kept constant, find the value of X.

   A. 2
   B. 3
   C. 5
   D. 6

2. All the water in container A which was filled to its brim was poured into two containers B and C. The quantity of water in container B was 62.5% less than the capacity of container A. If 148 liters was now transferred from C to B, then both the containers would have equal quantities of water. What was the initial quantity of water in container A?

   A. 648
   B. 888
   C. 928
   D. 1184

3. A bag contains equal number of Rs.5, Rs.2 and Re.1 coins. If the total amount in the bag is Rs.1152, find the number of coins of each kind?

   A. 432
   B. 288
   C. 144
   D. 72
   E. None of these

4. The marked price is 10% higher than the cost price. A discount of 10% is given on the marked price, in this kind of sale the seller

   A. Bears no loss no gain
   B. gains
   C. loses 1%
   D. None of these

5. 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

6. Seats for Mathematics, Physics and Biology in a school are in the ratio 5 : 7 : 8. There is a proposal to increase these seats by 40%, 50% and 75% respectively. What will be the ratio of increased seats ?

   A. 2 : 3 : 4
   B. 6 : 7 : 8
   C. 6 : 8 : 9
   D. None of these

7. The sum of squares of three numbers is 280. If the numbers are in the ratio 3:5:6, find the greatest number.

   A. 8
   B. 6
   C. 12
   D. 18

8. The ratio of two numbers is 5:9. If each number is decreased by 5, the ratio becomes 5:11. Find the numbers.

   A. 30, 19
   B. 21, 37
   C. 15, 34
   D. 15, 27

9. A class has 90 students. If the ratio of boys and girls is 7:8, find the number of boys in the class.

   A. 48
   B. 42
   C. 60
   D. 70

10. In a certain class the ratio of men to women is 3:5. If the class has 24 people in it, how many are women?

    A. 9
    B. 12
    C. 15
    D. 18