Question

The second,third and fourth terms of a proportional are 35,48 and 60. Find the first term please tell correct answer​

Answer 1

Answer:

21

Step-by-step explanation:

Let's see from the end: difference between 60 and 48 is 12 and then the difference between 48 and 35 is 13. So, in the same progressive manner, the difference between 35 and the number should be 14. Hence 35-14 = 21.

Answer 2

Answer:

Let First term be X

X:35::48:60

by PRODUCT OF EXTREMES=PRODUCT OF MEANS

X×60 = 35×48

60X = 1680

X = 1680/60

X = 28

so, first term =28..