Question 80

The third proportional of two numbers 24 and 36 is ?

Solution

Three numbers a,b,c are in proportion iff $$b^2 = ac$$

Here, a = 24 and b = 36

=> $$(36)^2 = 24 \times c$$

=> $$c = \frac{36 \times 36}{24} = 3 \times 18$$

=> $$c = 54$$

=> Ans - (B)


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