Find two numbers in the ratio of 8: 7 such that.

(i) Find two numbers in the ratio of 8: 7 such that when each is decreased by , they are in the ratio 11 : 9.
(ii) The income of a man is increased in the ratio of 10: 11. If the increase in his income is Rs 600 per month, find his new income.

Solution:

(i) The sides of a triangle are in the ratio 7 : 5 : 3 and its perimeter is 30 cm. Find the lengths of sides.
(ii) If the angles of a triangle are in the ratio 2 : 3 : 4, find the angles.

Solution:

More Solutions:

• If x + 5 is the mean proportion between x + 2 and x + 9.
• Find two numbers such that the mean proportional.
• If b is the mean proportional between a and c.
• Prove that a, b, c and d are in proportion.
• Prove that, If (x/a) = (y/b) = (z/c).
• Prove that, if (a/b) = (c/d) = (e/f).