Question

10,30,20,x,50,150,y find x and y

Answer 1

Answer:

Y = 100.

X = 90.

Step-by-step explanation:

Hey Mate,

Basically this type of question solve on base of options. Because many time their is more than one logic in the series. and if we get some other logic so our answer will be wrong. But their is no option. No problem we will make our method.

Series : 10, 30, 20, X, 50, 150, Y.

This is a mixture of two series.

Series 1 : 10, 20, 50, Y

Series 2 : 30, X, 150.

And both series have different logic.

Start with Series 1.

Series 1 : 10, 20, 50, Y

Diff :          +10, +30, ?          

So, When we check their is different of +20 in between 10 and 30. So, different between next next and 30 is also +20.

? = 30 + 20 = 50

So, Y = 50 + 50

Y = 100.

Now,

Series 2.

Series 2 : 30, X, 150.

Different between 30 and 150 is +120. so just divide 120 into 2 parts. Each part have +60.

So,

X = 30 + 60

X = 90.                                   #(90 + 60 = 150(Next term))

#I already told you that this types of questions solve on basis of option. Because some series has more than one logic.  So, if my logic and editors logic is different then the answer is wrong. But if my logic and editors logic is same then the answer is Correct.