Answer:
The number of minutes it take to serve 8 person in party is 24 min
Step-by-step explanation:
Given as :
To serve 1 person at a local restaurant it take 10 minutes
To serve 5 person at a local restaurant it take 18 minutes
So, From given information . it is clear that ,
For ( 1 + n ) person to serve , the time required is ( 10 + 2 n) minutes
Take n = 1 , For ( 1 + 1 ) person to serve , the time required is ( 10 + 2×1) min
I.e for 2 person to serve , time required is 12 min
Take n = 2 , For ( 1 + 2 ) person to serve , the time required is ( 10 + 2×2)min
I.e for 2 person to serve , time required is 14 min
Similarly for n = 7
For ( 1 + 7 ) person to serve , the time required is ( 10 + 2×7) min
I.e For 8 person to serve , the time required is 24 min
Hence The number of minutes it take to serve 8 person in party is 24 min Answer
