Question

15÷3=51 27÷6=92 18÷9=63 21÷12=?

Answer 1

Answer:

74

Step-by-step explanation:

Since the series as given as:

15÷3 = 51       27÷6 = 92       18÷9 =  63      21÷12 = ?

In these question we would look carefully into each term, and corelate the other by finding the best pattern,

In this question, thesre is pattern assiciated , and with that pattern , we would find the ? value.

Let us investigate the pattern ;

15÷3 = 51      ⇒ 5 = 51

⇒ $5 \times 10 +1$

27÷6=92     ⇒  9/2 = 63

⇒ $4.5 \times 20 +2$

18÷9=63      ⇒ 2 = 63

⇒ $2 \times 30 +3$

21÷12=?      ⇒ 1.75 = ?

⇒ $1.75\times 40 +4$

? = 74

So, the missing term will be 74.

Answer 2

The value of missing number is "74".

Step-by-step explanation:

We have,

15 ÷ 3 = 51, 27 ÷ 6 = 92, 18 ÷ 9 = 63

To find, 21 ÷ 12 = ?

15 ÷ 3 = $\dfrac{15}{3} + \dfrac{12}{3} =5,1 =51$

27 ÷ 6 = $\dfrac{27}{3} + \dfrac{6}{3} =9,2 =92$

18÷9 =$\dfrac{18}{3} + \dfrac{9}{3} =6,3 =63$

Similarly,

21 ÷ 12 =$\dfrac{21}{3} + \dfrac{12}{3} =7,4 <strong>=74$ = ?

∴ Missing number(?) = 74

Hence, the value of missing number is "74".