Question

एक बल्लेबाज 19वीं पारी में 78 रन बनाता है और उसका औसत रन 2 कम हो जाता है। 19वीं पारी के बाद औसत रन है।​

Answer 1

Answer:

114

Step-by-step explanation:

let us assume avg runs of 18 matches=x

after 19th match avg=x-2

here we have

(18x+78)/19=x-2

x=116

and after 19th match avg=x-2=114.

Answer 2

Given :

Score at 19 th inning = 78 runs

Average get reduced by 2 runs.

To find : Average after 19 innings = ?

Solution :

Let the average of 18 innings be 'x'

Score at 19 th innings = 78

According to question, it becomes,

$\dfrac{18x+78}{19}=x-2\\18x+78=19(x-2)\\\\18x+78=19x-38\\\\78+38=19x-18x\\\\116=x$

Hence, the new average would be $116-2=114\ runs$