Question

Find the missing term in 7 books: 840 :: 27 books: X

Answer 1

Step-by-step explanation:

$7 \times x = 840 \times 27 \\ x = \frac{840 \times 27}{7} \\ x = 3240$

Answer 2

Answer:

x = 3240

Step-by-step explanation:

7 books: 840 :: 27 books: x

Product of means = Product of extremes.

840 × 27 = 7x

840 x 27/7 = x

120 x  27 = x

3240 = x

⇒ x = 3240

                  Hope it is helpful. Take care.