Question

9. Three positive numbers x, y and z are in the ratio 2 : 3:5. If x^2/2+y^2/2+z^2/2=684,find the values of x,y,z

10. Area of a square park is 121 m2. Find the length of longest straight rod that can be put in the park.

11. Manoj have 535 flower plants. He wants to plant them in his garden in such a manner that number of plants
in each row is equal to the number of total rows. Maximum how many plants can be planted in this manner.

12. Three numbers a, b and c are in the ratio 3 : 4:5. If a + b^3 + c^3-3^3 = 4069, find the values of a, b and c.

130Find the largest 3-digits number which is a perfect cube. Also, find the cube root of the perfect cube.
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Answer 1

Answer:

Let x, y and z are three positive numbers and P = x+y+z ÷2 ; if ( p-x): (p-y): (p-z) = 3:5:7 then the ratio

Step-by-step explanation:

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Answer 2

Step-by-step explanation:

9. Three positive numbers x, y and z are in the ratio 2 : 3:5. If x^2/2+y^2/2+z^2/2=684,find the values of x,y,z