Question

(d) 31.25
1. The second third and fourth term of a proportion are respectively 24, 16 and 12. The first term is
(a) 30
(b) 32
(c) 36
(d) 40
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Answer 1

Answer:

given

second third and fourth term

to find first term

we know that product of extreme = product of means

let first term be x

x:24 :: 16:12

x × 12 = 24 × 16

x= 24× 16 / 12

x = 32

so option b is correct

hope it helps you